Unless the official position of the US has changed, is it actually likely he'll be permitted to stay? Doesn't the idea of being granted refugee status because you'll be arrested depends on the US government officially stating that the Egyptian government is essentially illegitimate?
I'm hoping I'm wrong, but honestly, I'm not hopeful for his chances of being granted asylum unless there's a lot of leeway to break the rules for politically visible cases.
Or unless the USA is willing to alienate one of its few allies in the region to save this young man from gross injustice (I'm willing to take his word that he didn't personally steal two tanks. And if he did, then the American government really should grant him asylum and his own super-hero team.)