Let him! He won't win + counter-sue him at the same time for wasting your/ court's time. Anybody can sue anybody else for anything; it doesn't mean that the plaintiff is guaranteed to win though. Hang in there! :-)

I have no pity left for spot-stealers. My spot in my building is numbered. In a private lot. AND mine used to be the handicapped spot- it still has the picture on the pavement but no sign. And people still steal it about once per month. I used to be nicer about it, but after years and years of having my dinner get cold in the car while trying to find the jackass who took my spot, hell yes I call the tow truck right away. Can't be bothered to find a legal spot for your car? Why should I put the extra effort in to save you from the clear consequences of that? But they'll always whine "I was only there for a minute" and "where was I supposed to park?" Those are your problems, spot stealing scum, and you decided to make them mine. I solved it with a tow truck.