I can ask my son if he knows which places are good or not...I know one place he would go to, there was a homeless guy that he paid $20 each time to guard his truck! The guy was really good and my son's truck was never messed with.
The man knew my son on sight and was ready with a baseball bat to keep the truck safe...my son said the $20 was well worth it as that area was not one of the best, but the place was!