You bought a car that's a cop magnet, AND you tinted it, good job. Live with it. Window tint and a custom plate will attract the po po, remember that. I've never had either, and I NEVER get harassed. Anyone I know with tint usually gets fucked with though.

If its so dark that people can't see you when you're driving its too dark and prepare to get stopped a lot.

And I agree with what someone else said, get a daily driver and only pull the Mustang out on weekends. That way you can blend in better.