Martin, I'm not a lawyer so I don't know how it all shakes down in court. But the way I see it, you did not commit a crime if you did not intend to hit the window. Go check out your state penal code from the library and loo under "disturbance", "assault" or something similar. I believe you will find the words "malicious intent" for those crimes. If you did not have malicious intent, you did not commit a crime. It's quite simple. Of course, witness would need to collaborate your story that there wasn't malicious intent.