Food safety is a lot more complicated than time and temperature. Guidelines like the USDA's are simplified and overzealous to the point of harm IMO. Leftover pasta in tomato sauce in a takeout container in a car overnight has probably never made anyone sick. Pasta in cream sauce might spoil, but again probably perfectly safe from the standpoint of pathogens. Meanwhile, a raw lettuce salad stands a reasonable chance of making you sick even if always stored according to the guidelines.