Missing boy autistic?

Do the parents of Brennan Hawkins, the boy lost for 4 days in Utah, know he is autistic?

They say, "he is socially immature" and, "their son has attention deficit disorder and that there have been occasions where he has gotten lost simply walking from the bus stop to his house"; strike 1. Apparently, he saw searchers several times in 4 days, but never revealed himself because he was told to avoid strangers - that's literal thinking, and strike 2! The first thing he wanted to do with the searchers, after getting some food and water, was to play a video game, and the primary thing his parents reported him asking was whether or not the Pokemon cards he ordered on E-bay had arrived - that's a triple-whammy: relation with things over people (huge presumption on my part), specifically collectibles, more specifically Pokemon cards!

It's no wonder he got lost, and no surprise (to me, at least) that he survived 4 days.