I feel so bad for you. You live next to a jackass.I used to live next to one too. He will just keep harassing you - it will not stop. This kind of person thinks he has a right to control your actions and views, and I garantee you this situation will just escalate. Because this is the kind of person that is convinced he is right and just cant let it go. Anyone in this day and age that calls someone a "fascist", is just a moron. Washing your car frequently has nothing to do with facism. I live in PA, also. I probably use 300 gallons every-time I wash my car. I do it frequently. I don't care. I pay my taxes, pay for water, and mind my own business. Unless there is a law how much water you can use, tell that guy to get lost. The only solution is one of you moves or dies. I would look into if you are breaking any local laws, because I sure he is doing just that. I would keep an eye on your vehicles and any property you store outside. This kind of person is determined to make your life miserable. If he can't do it by preventing you from washing your car(s) at will, he will likely key your vehicles or set your mail box on fire. Good luck, your going to need it.