There is little reason to NOT have a handicapped notice SOMEWHERE on the car.
If they had a hanging tag they forgot, then they could take it, with the ticket, to court and had it cleared.
But then again, that requires thinking and not emoting and reacting out of that.
We have 2 placards. One for Hubby’s car and one for mine. They cost nothing and are easy to get. Fill out the form, have the doc sign it and send it in. Never have to reapply. The state sends a new one before the old one expires.
There’s absolutely no reason not to have one if you qualify.