She's not going against the law at all here. All Thamnophis species in Arizona have a 4 count bag limit per year. As far as what you do with them, thats up to the collector... There's no law against that either. If that were the case, I wouldn't have had half of the stuff I've had.
I wish I could see the darn thing, but the pics aren't showing up! Allison, you'd be surprised to see how far north some of the checkereds can make it. I found some up by San Fran peaks one summer.
Has he/sh/it started eating for you? A word of the wise (if you go the fish route)... stay away from Goldfish and stick to Minnows. Or go buy him a trout and slice off itty bitty pieces for him. Good luck with him, and I hope to see it soon! If you need help, let me know. We're not that far away