The truth is, people like that DO exist. I remember traveling around Europe a lot around 10-15 years ago, and lots of folks were trying to scam tourists in a similar way. Not at parking lots, but at the toilets - both public and private. I remember seeing this guy enter McDonalds and put a table near the bathroom entrance and ask everyone trying to enter for 25 cents. I was a naive kid, so I gave it to him. My dad refused to and proceeded to use the bathroom for free. Because IT WAS free. And McDonalds staff didn’t kick the guy out for the duration of 2 hours we were there. And I’ve seen it more than once.