They're being outlawed in Czechia, too.

In France they're illegal around (and visible from) express roads (roads with central separators and at least 2 lanes each ways, generally limited to 110km/h) and highways (same but with more stringent sizing specs, extensive shoulders and usually speed-limited to 130km/h), within 40 meters in cities and 200 meters outside.

They're completely banned on the Autobahn and even on normal roads all ads have to be approved.