[cvsh]

Interesting. So salting your plates skirts reflectivity and plate obstruction laws because a) the plate is still visually unobstructed, and b) the laws apply specifically to the reflective coating rather than infrared visibility more broadly?

[dfox]

In my experience the readers are not that good and you really don't need to intentionally do anything to the plate in order for it to be unreadable. Normal wear and tear is enough at least for the front plate (ie. damage from road gravel, otherwise uninteresting collisions with various obstacles while parking and so on).