It is important to always carry a detailed paper city map and and also a state or province map.
If your car stalls or you slide off the road into a ditch you can use them as a blanket until someone finds you. A cell phone makes a poor insulator.
This is why I have a full first aid kit, army blanket, zippo with spare fuel, and an e-tool in the trunk of my car. In case any of this happens.
I could imagine UUUd444 reading off his kit list
"Mustang Survival kit contents check. In it you'll find: one .45-caliber automatic, two boxes ammunition, four days' concentrated emergency rations, one drug issue containing antibiotics, morphine, vitamin pills, pep pills, sleeping pills, tranquilizer pills, one miniature combination French phrase book and Bible, one hundred dollars in american dollars, one hundred dollars in gold, nine packs of chewing gum, one issue of prophylactics, three lipsticks, three pair of nylon stockings... Shoot, a fella could have a pretty good weekend in Edmonton with all that stuff!"