<br>Depends on the state, but if you have dark tint, especially limo tint...cops can ticket you and write a "work order", requiring you to remove them in 15-30 days and have it inspected to take off the flag. Otherwise, your van's registration gets suspended automatically, and the next cop pulling you over can impound + lots of tickets and maybe even jail time.<br><br>Better would be to make cardboard cutouts and glue black construction paper on one side. They can be removed easily when you want to have a view. With the tint that came with my conversion van, I found out that I didn't even need to use black construction paper as the beige cardboard looks black from the outside due to the tint.<br><br>Then later, I'll put Reflectic on the other side should you want to flip them for hot weather.