Try this with the front windshield tint, its a pain in the ass though. Tint the windshield before it is put in the car, I know huge hassel but just do it when its replaced next time. What the cop looks for is a tint line, If you tint the window before its installed they can't see a tint line. Here is the sweet part. If the cop says anything tell him the car came that way when you bought it if you bought yours used or tell him the window place musta made a mistake and got you the wrong glass, you never noticed, and will have the window place put the right one in. I have blue lights in my mirrors and when a cop asked me how I got the blue lights in there, I said "came that way" and showed him how they changed to amber when the turn signal was on. He looked confused and changed the subject.
The key is to volunteer as little info as possible, never help the cop write you a ticket and chose your wording correctly. If I had said the mirrors came that way he would have realised they were not original and probaly wrote me a ticket. If I had said the car came that way then I would have been asking for trouble, don't lie to cops.
In Iowa:
you have to have a red reflector in back and red bulbs,in front you can only have amber or clear. I asked a cop about the new blue headlights and he said, " um...dunno.. I guess they are legel since they come on the new cars."
you can have neons on your car if you are not moving on a public street, but I have seen people roll right by cops before with them on.