had a similar problem a few summers ago with n horrible git near us, used to come home in car 3-4 o clock at morning, windows wide open on car, music full blast, then the cheeky git used to sit in car fer 10-15 mins listening to his cd finish. was not a happy cashy. so i put a letter through his door, saying what was going to happen to his precious car if he persisted, unsigned of coarse, guess what? hes never done it since. worth trying.
