When you commit a non-moving violation, you will receive a ticket. The ticket will give you options for paying the fine for the violation or fighting it in court. In most cases, the costs of such tickets is minimal compared to the larger costs of taking the case to court. If you do take the matter to court, some common defenses include: parking meters did not work, emergency situations that required you to violate the time limitations or mistakes in the traffic violation process.
Some examples include: