We had to keep two staff there, and they would split the fine.
Many times we got stiffed.
Edit: for reference, our fee was about $14/day to keep the kid, so it was a pretty stiff penalty.
I don't think our society is ready for the combination of automatic enforcement and truly punitive penalties. We readily demonize the accused; just having your mugshot taken can end your employability. Yet many of us break laws daily -- speeding, jaywalking, watering the lawn during the day, even plugging in a microwave oven without a building permit in some jurisdictions -- and society still works because we don't expect much enforcement. We are heading toward a future where everyone will have marks on their permanent record, but today our society tut-tuts, or much worse, at anyone who does.
I see all the time on the Internet (and even IRL once) people make claims like, "oh, carbon taxes will just increase CO2 output, you know like in that Israeli daycare study." Drives me nuts.
Are fines the best possible solution to this particularly traffic problem? I have no idea. I'm not an expert in this area. But I am highly confident that whatever relation it has to the Haifa daycare study is so incredibly tenuous that it is not worth mentioning.
The reason I said anything in the first place is that I object to automatically administered punishment. Either separately can be OK. Automatically administered? No problem, that's called a tax (including use taxes like tolls). Punishment? Then we'd better have due process, and yeah, it's going to be expensive and labor-intensive to administer, but that's critical in a free country. That's why I called out the "is better than" quote. I think it's strictly worse.
If the ticketing decision made by an automated camera system is deemed acceptable when issuing mere fines akin to parking tickets, but deemed unacceptable when issuing other penalties (which don't have this wealth inequity issue we are discussing now, at least not exclusively), that's effectively a poor tax.