First, the people who get "in trouble" are often absolutely brazen in their unfair use of common parking. They're warned multiple times and even when given a "last chance" notice they'll just keep breaking rules.
At that point you have to TOW them. And let me tell you, a TOW is something you can't lampoon or get free internet off of. Towing SUCKS and drivers bend the knee after this happens. I have data to prove it!
Anyhow, another thing about these folks is that they will go so far as to dispute that the vehicle was in fact in violation of whatever parking rule.
They'll say the warnings were not real and the tow reason was definitely not real. They'll tell the business IT needs to pay for the tow. Well, their faces change when confronted with photos and maps and times showing each violation!
It isn't really that funny, but it is a big deal to any facility because some low-level administrator has to face some really pissed off people who will break rules and lie because it has always worked. So it is really important to give them great evidence so there isn't really a discussion needed.
If you want to check out my product, here's the landing page: https://easyalpr.com/products/parking-enforcer