as a police officer in NJ bro, keep your tints to the rear windows. its illegal to put them on the front. if you put like 5% on your front windows, you will be harrassed by police. but becareful with NJ State Troopers if you drive in area's or highways filled with them. They will SLASH your tint if they catch you, and YES, they can do that. unless you have a signed waver from your doctor saying that your skin is vulnerable to sunlight and you must have them on there. but I dont think you would want to put your doctors license on the line just so you can have tint on your car.
but there are two options you can do, keep your tints to the rear, (doesnt matter what percentage)
or two, (YOU DIDNT HEAR THIS FROM ME) if you put about 35-45% all around your windows except for your windshield, it still gives it that DARK tint (not as bad as 5%) but if a cop can see you through the window, he will probably not bother you.