aside from learning where they stationary cameras are, the only other way to defeat the mobil units is a radar dector. thank god the mobile units still use radar and they are easy to pick out. what sucks in AZ even more is if you have 2 moving violations within 2 years your license gets suspended automatically. no saftey net at all. on top of that if you have any sort of red light infraction you have to attend a traffic survival school and it doesn't erase the ticket.