I'm with Troy on this.

A number of years ago, my wife and I were unexpectedly snowed-in for three days at a friend's cabin outside Cripple Creek, Colorado during a heavy November snowstorm.

Happened on the day we were scheduled to leave, so we'd exhausted the food we brought with us. Had plenty of water, but the only food was two cans of Dinty Moore's Beef Stewleft by the owner, that had been throught the previous season's freeze/thaw cycle. It had turned to mush, but we ate it anyway. Wasn't pleasant; haven't touched the stuff since. (I'm a little smarter now, and wouldn't allow myself to be caught with my pants down, so to speak).

These days, like Troy, car kit includes mostly foodstuff that won't freeze, since we venture beyond the desert, some requiring added water. Kit includes a First Need water purifier (not filter, but purifier), so water needs beyond carried supplies hopefully should be less problematic.