Wow, he got lucky! In that situation at least I'd be fine for a good while provided I wasn't too buried to breath. This is exactly the kind of situation I had in mind when I set up my winter kit in my car: Wiggy's 0 degree bag, Wiggy's Mukluk overboots, coverall-type snow pants, Wiggy's mittens, spare clothes, water bottles, traction mats, small shovel, freeze dried meals, etc. I've even got a Silky Kataboy in there in case a downed Tamarack tree blocks me on a mountain road.