Also, I don't like police overreach but I wouldn't think getting tinted windows gives you any legal right to people not being able to see inside your car, just that it won't be easy for them to casually look over and see inside your car.
> The Supreme Court has foreclosed such an argument, holding that a police officer did not violate a driver’s reasonable expectation of privacy when he used a flashlight to look inside the windows of a car that was subject to a traffic stop. See Texas v. Brown, 460 U.S. 730, 739-40 (1983).
Especially considering how much tint is allowed is often regulated by the state so that you can safely see out. The idea that you can see through it already is a thing.
I have seen multiple vehicles so heavily tinted that their drivers have to roll down the window to turn at intersections at night...
So, moving that boundary from "the blanket" to "the window" to me seems pretty reasonable, except that a window tint doesn't completely obscure what's behind it like a blanket would. A tinted window fundamentally can't protect from plain view in the same way that non-transparent object can; the owner would be better off hanging curtains from inside the car.