There is a video out there by a come from texas who talks about how to not get busted again because he realized the war on drugs was crap maybe your friend should find it... iirc its called never get busted again.

How does he interact with the cops. Does he pull an attitude with him? Cause if he does then they will remember him and just to be the dicks they are will fuck with him on every opportuinity possible just to fuck him over.