These people are idiots. She's annoying as hell and was ready to give up 10 seconds into realizing their predicament. They never tried to exit through the sunroof...they had candles but never tried to warm up the windows enough to be able to dig themselves out even a bit, they didn't try to use the rear defroster (car's battery wasn't dead, it just wouldn't turn over). Breaking the glass (finally!) with the headrest prongs will NOT lead to freezing to death...snow is an insulator which also means that the car's inside wouldn't be as cold as they're implying.
A great example of everything NOT to do in this predicament.
Review of Centigrade
