FYI- At some point there's no sleeping through an ice-storm. The sound of trees & branches crashing to the ground sounds like a war-zone. But I was naive, & at first I thought the power would be restored much sooner than it was.
The first thing I did, actually, was put all my snakes into containers & under my down comforter with me for warmth, lol. By morning, though, it was time to get serious.
I actually didn't lose any food either- I put frozen foods in a large ice chest on my sheltered but freezing front porch, where nothing thawed, & I kept cold foods from my refrigerator in my laundry sink in the garage, because my garage stayed a fairly steady 40*. After a day or so, I even collected some icicles off the house & added them to the ice chest of food outside, but nothing got even close to thawing in the bitter cold. (That cooler was packed pretty solid too.) It was a lot of work, but with no power & nowhere to go, there's nothing else to do anyway. I hope you never experience that. But be prepared anyway. I heard thru the "grapevine" that some people lost large collections of snakes (or most of them) from that ice storm.
If you've only got one or a couple snakes, you can always bag 'em & keep them in your shirt for warmth. I've done that in a pinch too.Any port in a storm...