Mary Rose's father always waits until the last minute to do everything. Now they're in the middle of a blizzard and the car runs out of gas. Mary Rose and her younger sister Jo-Beth are supposed to wait in the car untik he comes back. But Jo-Beth is just like their father. she has to go to the bathroom. Immediately! Where-at 5:00 p.m. on a Saturday night-in a blizzardd can Jo-Beth find a restr…