My little cul de sac street is populated with a network of families with kids who have all lived here for generations. The parents gather by committee to choose the best school for their children and to make collective decisions for the street.
They also decide who is a danger to the kids. Recently, much to my surprise, I was put on the banishment list...the same list that includes the neighbourhood thief and pedophile. I discovered that I was on this list because the girl who usually plays with my daughter has been ignoring me. When people on my street choose to ignore you, they really turn it into an artform. This girl not only didn't respond to my greetings, but she immediately turned around went inside and shut the garage door. After she behaved this way for the third time, I realized that it wasn't my imagination.
I'm not passive-agressive. I think it's childish. So, after the latest incident of being ignored, I marched over to this girl's house and politely asked her in front of her family what was going on. Silence, muttering, denials! A sure sign of conspiracy. The father just sat there stunned that I was actually asking about it.
Finally, I found out from my wife that our neighbourhood 5 yr. old Dennis The Menace, you know the type of kid who is constantly pestering his neighbours with questions and excessive friendliness, had thrown a terrified fit when I innocently teased him the previous day.
He had told me that his father broke into my car. I, of course, knew that this was a playful story, but it was also a serious statement. So, I teased him by pretending to call the police. Before I had a chance to stop him, he ran inside crying to our neighbour, his surrogate Grandma. I thought for sure this Grandma would calm him down, and all would be cool with the world.
Little did I know, this boy's estranged mother was a drug-user, and was often carted away by the police. So, it was a very sensitive subject, and it took him a while to calm down. He was so upset that they had to call his Dad at work, so that his Dad could explain that I wasn't serious and to chill him out.
I knew nothing about this post-teasing chaos, but once it was explained to me, I immediately apologized to the boy, and to his father. Then, his father told me that Grandma was furious with me, and she was the one who called the neighbours to tell them how horrible I am.
I was only on the banishment list for two days, but it felt awful. It didn't make any sense to me, and it obviously could have been hurtful to my daughter, who was also ignored.
In the end, I have mixed emotions about this reaction from my neighbours. Part of me is embarassed that I made a kid cry. Another part of me is upset that my neighbours would teach their children that the best way to handle conflict is to completely ignore the person. That type of behavior is extremely hurtful at school, and it happens all the time.
The lesson is that you should always be careful who you tease. Even if it's playful, it might get you banished by your neighbourhood. And that's never good.

Wow
Man, I don't think I know at this moment how to react to your story. At first, I thought it was kind of funny. I mean, it was just a misunderstanding and a little playful joke. How were you to know? But by the end of it, I seem to be in the same boat as you. The way the neighbors acted was kind of creepy...almost like a cult. Fortunately, the suburb I live in is very new, so all of the families here came from somewhere else fairly recently. However, I have heard of this sort of thing happening in the more established suburbs that friends of mine live in. It seems that after a while, the families that are not so transient get very close-knit. After those bonds are formed, it is very hard for newcomers to find an easy route into them (sort of like high school cliques). The state of mind that comes about because of this "bond" is almost one of "you are guilty until proven innocent". I think you did the right thing by apologizing to everyone and confronting the little girl. Now that you are in the "circle of trust" again, hopefully all can have a good laugh about it.
Just a suggestion
Don't worry about it. You were fine. I don't know that I would've picked up the phone, but I probably would've said something jokingly about calling the police, illiciting that same reaction, I am sure.
You guys touched on the problem of isolation in neighborhoods. It's a big problem these days when we seem to worry about uncle chester down the street and kid snatchers (some of the fears are real and some are not).
One solution I have used here is a block party. It breaks down barriers and people see that Neighbor A, B, and C might have some good points as well as bad ones.
On a cul de sac, this should be especially easy. Pick a day like Memorial Day (Monday evening) or the weekend before the first/last day of school. Whip up a note on the computer saying "let's meet in so-and-so's driveway at 6 p.m." (pick someone with a cleaned out garage in case of rain) and have some little coloring contest or something for the kids. Do potluck. I like to bring the KFC cuz, well, everybody loves a little....
Show Them How Adults...
Ticktock, kids will be kids, it's just too bad your adults neighbors are being so childish. If they got a problem with you they should address it to you, face to face and it would be resolved, end of story. When games are played it seems to always hurt somebody, and you I'm sorry to say were that somebody this time.
Have they ever come to you to join in on their childish behaviors? If they ever do, that's your chance to banish them to their rooms for an hour for not acting like big kids. Just kidding, this would be the time to as they say, "call a spade a spade". Show them how adults deal with situations.