I’ve eaten cold food from a can several times, and that is my primary plan (and it’s not THAT bad). I also have several options to cook if my car gets stranded, but food temperature is the least of my worries - getting the liquid and the calories inside my body are at the top of my list.
Agreed. Back during Blue Law days, you knew to pack a can opener and canned foods with the liquid already in them when on a trip. I can't ever foresee being stranded in a snow drift in the middle of Texas but would be more concerned with foods exploding and dry mixes turning to goo in the middle of our 110 degree summers. I'll pass on the "add water" foods and sterno inside the car. One size does not fit all.