Washington State has a clever balance: Signs visible on the highway can only advertise things people can actually get on the property below.

So it's not a hard ban, but it kneecaps the business model behind forests of billboards showing whatever the highest bidder wants.

worst case scenario we get Tokyo style trucks (apparently called koukoku torakku).

The billboards here, in Zurich at least, are quite small and tasteful. The design museum even has exhibits at times of them.

For example: https://monocle.com/design/how-zurichs-poster-culture-has-tu...