A blanket for warmth?
Paranoid is like what I carry, in Wisconsin/Minnesota I carried enough for two people to live well and comfortably at 20 below zero for three days, which meant that by myself, I would have been able to survive for a lot longer than twice that and even two people could have been fine for a long time if they knew not to live high on the hog for three days.
The blanket(s) are stowed next to the spare tires. They probably won’t smell like roses, but neither of us will freeze to death. I got them at the Army Surplus store for about 10 bucks each IIRC.
Since both Mrs. L and I work within 12 miles or so I figure what I’ve stashed in the vehicle should be sufficient to get us home under all but the very worst of conditions. And call me what you will, I didn’t plan on taking care of anyone else while we do so. LOL.
I wish you the very best luck,
L