Re: My neighbor yelled at me for washing my cars too often.
The challenge to all this is that he is likely going to try and one up you too in the same way you have done this to him. So one morning you wake up and your car is keyed. Unless you have a good camera system the police can do nothing more than question him and he has the right to keep quiet.
Not saying it will happen, but it does happen all the time. I often remember a old codger that use to walk up to me when I dried my T/A under the clubhouse driveway and tell me I had NO right to use this public driveway for 1/2 hour. He called the cops when I got rowdy and told him to buzz off. The officer was kind, allowed me to finish, but warned me that old men are the worst at one up'ing young kids and to park the T/A in the garage for a couple weeks.
Now I am not saying you should stop washing your car ... but intentionally infuriating him "could" have consequences.