A Scottsdale man who has spent more than a year and thousands of dollars fighting his photo enforcement ticket said his next stop is the U.S. Supreme Court. David Cain estimated he has spent at least $20,000 fighting the ticket he received in December 2004, along with his Scottsdale attorney, Mark Jewett. The north Scottsdale investor said he was going 45 mph in a 45 mph zone at North Hayden Road and McCormick Parkway, not 57 mph as the ticket states. However, his legal argument has nothing to do with his speed. Cain contends Scottsdale’s photo enforcement illegally issued him the ticket because it wasn’t certified by a human. The photos also don’t clearly show the driver of the vehicle who is accused of speeding, Cain said.