No, it’s actually a case of you ignore the warning, you pay for your own rescue plus a fine. Sounds reasonable
There are a few here who never miss a chance to rip on law enforcement. They must be criminals themselves.
It appears they can still fine you if you ignore the warning and don’t need rescue. To me that is just ripe for abuse by governments in need of some quick cash during a emergency. Declare a road with a partially blocked lane “closed” and wait a people drive around a downed tree branch.
Only if you end up a burden, and no collusive fingering to your insurance company by the governments issuing of “points” to your license.