have a list of where all maybe
see if
http://crimereports.com/ works where looking
and Google maps street view you can walk the street before having yourself and trusted clients do a drive by at different hours.
check to see if you can view 911 calls for area. Even lots of parking complaints is not good
neighbors can be won over. by pick where clients park, ring door bell or call when at rather than blow car horn. Client leaving have client bush snow off old lady next door car off if parked on street etc etc etc
by pm only I can tell a story two providers on same street, complaints busted one, other the neighbors told LE NO leave that one be