New laws in France only work if the French want them to work
It’s worth reading the article in the Independent about changes ot the system of issuing number (licence) plates to cars in France. The Aude is one of the departements prostesting the change which would see the elimination of the department number on the plate.
I’m betting it won’t be eliminated, at least not completely. The French only obey laws they agree with. Any others are recinded. Quite sensible really.