You're right. And I'm the first to admit that I cannot even begin to understand the full potential of the application. I'm not from the US and these things are

You're right. And I'm the first to admit that I cannot even begin to understand the full potential of the application. I'm not from the US and these things are decidedly local and special. But from where I'm standing, you either park correctly or risk a ticket. In fact, this country here just raised the minimum amount for parking offenses because people did the math and found out that in some cases a ticket was cheaper than paying (parking ground, whatever). So in my (certainly subjective, shaped, hardly applicable to the service at hand) world view you're just not fighting tickets. You either don't get them or you risked to get them. Exceptions exist, but are a teeny, tiny fraction and wouldn't be enough to keep a service like this afloat. Could I be totally wrong: Sure.