Your analogies are flawed because they deal with people actually getting hurt as well as permanent property damage to tangible items, etc. We're talking about dirt and grass at a public park here, man. Yes, it sucks that it happened, it was a dick move on the part of "Bubba", and no, people shouldn't just be able to drive through the grass whenever they want and tear it up.
But if it went down like it sounds like it went down when I read the first few posts, I think actually bringing the cops in is a dick move in and of itself. It sounds like the guy was on his way out and that there wouldn't have been any further damage done. I could see the guy getting a ticket if there was a cop there witnessing the act, but to actually call them in over it? Hell, why don't you get yourself a radar gun and clock the cars that are driving past the park as well? If they're speeding, don't they have disregards of their own? You and the PHPD could get yourselves a nice little racket going there...

BTW, Dan, if you are going to repair the damage to the fairway, please let me know. I'd love to come out and help.