Arizona citizens and out-of-state visitors, should be aware by now, mailed traffic citations aren't valid under Arizona state law. In order for the ticket to be valid, it either must be delivered personally or the motorist must sign a waiver of proper service. If you choose to find out if a process server will deliver the ticket, and the process server finds you, it may cost up to $40 extra on top of your ticket penalty. If the process servers don't always come out. And if they don't, the ticket gets dismissed 120 days after it enters the court system. Court officials say when that when that happens, it's as if you never got the ticket at all.