Remember, mixed in with all of this issue is the fact that most cities and towns are broke. Therefore, many law enforcement agencies are, essentially self funded through fines or seizures. Don't think for a minute that your $30,000 - $100,000 car would not help out the Department Christmas and retirement fund. Never open yourself up to a search. If the cop gives you the "nothing to hide" speech, just continue to say "no and I am going to keep it that way".