Re: What if you don't comply?
but after that there's not much more you can do
Take a cue from Eric Frank Russel's sci-fi novel "The Wasp" - the saboteur has a whole set of stickers that can be applied to glass surfaces that require really hot water to remove. And the hot water activates acid microcapsules in the glue that, once activated, combine to acid-etch an image into the glass.
For example "parks selfishly" or "inconsiderate idiot"..
Other, less polite messages[1] are possible - the only limit is your imagination and the size limit of the sticker.
[1] But please, not emojis. That would be far, far too cruel and twee. We have a language for a reason and do not need to regress to a pre-literate society.
Biting the hand that feeds IT
