I got busted in CA with tail light tints (vinyl) and had to remove the film and get my ticket signed off. The officer who signed off my ticket told me if you get rear ended with tinted tails, the other person's (who hit you) insurance company could possibly use that as defense and claim that they could not see your brake lights. Then you may be liable for your damage and theirs.
Looks cool, but just that piece of info made me think it was pretty dumb to take the chance.
04 Spec V
Nismo: Cams, Cat-back, FSB, RSB. JWT Valve Springs, BSR. AEM CAI, MMI, B&M SS, UR pulley, 2JR Plenum, Fidanza 11lb. flywheel, Spec Stage 2 clutch. BR coilovers, 6K swift springs, Nismo wheels, Projector HIDs @ 6K, LED tails and LED turn signals
~170WHP w Cats intact, CARB-legal.