Once again. Their is no protection in the Constitution from having to carry the stigma of your crimes, even after you've been punished.
You seem to be making my point. Your false analogy is an ex post facto punishment that is imposed by the state after the fact.
Once again. Their is no protection in the Constitution from having to carry the stigma of your crimes, even after you've been punished.
So? You are confusing punishment imposed by the State (the requirement of the license plate) with stigma of the crime, carried out by individuals. It is just a bit of sophistry to get around the prohibition on ex post facto law.