Tickets use to be revenue collection devices. Now they’re part of a design to make driving as painful as possible. From Eric Peters at ericpetersautos.com:
It used to be that roadside mulctings were primarily, even exclusively, motivated by simple money-lust. Traffic enforcement as a kind of random tax-raising effort.
Many towns and even cities in the United States are extremely dependent on the “revenue” – as it is styled – which is generated by the fleecing of motorists. This is why there are so many “infractions” – and it is why many of them are deliberately contrived so as to assure almost every motorist will be “guilty” of at least one “violation” every time he drives.
Examples include absurdly under-posted speed limits that are often functionally impossible to comply with – unless you want to get run over. And pedantic requirements about exactly where one must stop at a stop sign – and how long one must stop. The touching of a yellow line, etc.