It's well-known amongst people with brains that photo radar tickets sent in the mail are not valid. The ticket must be served on you personally, which simply means don't answer the door for strangers. Oh, and posting it on your front door or leaving it with someone else in the house doesn't count.
A friend went to traffic school, where the Scottsdale P.D. blatantly lied to the class and said that leaving a ticket on your front door or with another member of your household counts. Nope, wrong, you thieving liars. The Maricopa County Superior Court routinely throws out photo radar tickets that were "served" in such a way. If they pull this scam on you, pay the $35 or so to file an appeal and get your ticket thrown out too. Don't worry, childish Scottsdale will be ordered by the Superior Court judge to reimburse you for the $35, so it costs you nothing in the end.
In one of my favorite cases, a woman unknowingly answered the door for a process server. When he announced that he was there to serve her with her photo radar ticket, she slammed the door in his face. The crooked Scottsdale court decided that it was served, and assessed her the fine for the ticket. She appealed to the Superior Court, which said the ticket was NOT served because the process server must not only hand it to her, but must also obtain the identity of the person being served. The Superior Court threw out her ticket and ordered Scottsdale to refund her fine and court costs. Nice!
(All of this talk about the Superior Court ordering Scottsdale to be good sounds like a parent disciplining a disobedient child, which is an accurate analogy if you ask me.)
Don't get suckered in by the photo radar scam. Don't pay them, deny all knowledge, don't answer the door for strangers, and if they falsely "serve" the ticket by leaving it on your front door, appeal to the Superior Court which apparently has zero tolerance for Scottsdale's illegal shenanigans. Here's a link to one of the Superior Court's reversals:
DISCLAIMER: This post is intended for informational purposes only. If you require legal advice, please contact a licensed attorney.