Iowa can pull over and ticket out of state drivers for window tint as well. Iowa law essentially allows no aftermarket tint on the front side windows, but neighboring Illinois now allows 50% or 35% (depending on what your rear window tint is). It has been a problem for quite a few people that are in compliance with IL law coming into IA.
It seems odd to me that they can enforce something like window tint on vehicles that are registered out of state, when the home state may allow it. It isn't like you can just take it off when you cross state lines.
