in short, retirees place this sign on their vehicles in order to remember where they parked.
Literally when everyone starts doing it, it becomes useless. Copycats are so annoying. Whoever started this was a genius, and copycats ruin the ability of others to actually separate their own cars because of the proliferation of these. Evidence is by some people starting to use pool noodles because now their loofah just wasn’t distinctive enough to be able to tell.
Copycats should be smart enough to use their own unique item to mark their vehicle.