you should press charges anyway--the guy is obviously a repeat offender. Do society a favor.
Your experience reminds me of the joke about the guy who calls the cops, says "there's a burglar in my garage, come quick," but dispatch says they don't have anyone free at the moment.
Guy calls back, says "OK about that thief. I shot him." Ten seconds later there's 3 cop cars in his front drive and they arrest the burglar.
Cop says "I thought you said you shot him." Guy says to the cop, "I thought you said you didn't have anyone available to send."