Arizona is such an interesting state. I've been posting a lot about it lately. The authorities there are very much aware that is a pedophile sign and it being at a pizza place is no accident. As I've just posted elsewhere :

on the Arizona state website (http://endsextrafficking.az.gov/sites/default/files/estaz_030116_materials.pdf)), entitled The Dark Web - Identifying, Locating and Rescuing Victims of Child Exploitation which was presented by the US Department of Homeland Security in conjunction with THORN, one can see on circa Page 8 there is a screenshot of chat room examples: http://imgur.com/a/ikgOZ .

Notice in the top right hand corner in the menu entitled General, a link called Cache of Cheese Pizza.

This is further evidence that the pizza code is known to the US government and to THORN.