It should be moved into the refrigerator as soon as possible. After the cooking process is finished and some cooling has taken place in the pot, it should be moved to a glass container so that it will not absorb plastic or metal flavorings.
Left out for just one night, no, provided it was covered up so that vermine and insects could not contaminate it.
That would depend on what the sauce is made with and whether it is summer or winter, but it is always safer to just put it in the fridge.
No. Potentially hazardous food (which it is) should not be left out for more than 2 hours - at which time it should be re-heated or refrigerated.
Only if the car was as cold as a refrigerator. Otherwise, the food would not be safe to eat.
no
They may be unsafe to eat if left out overnight and should be thrown out.
does squash spoil if left overnight or two days
No. It is not safe to eat turkey left out overnight in any container.
No, it may not be safe to eat after being left out overnight.
No. Stew left out overnight would not be safe to eat, covered or not - unless where it was left out was as cold as a refrigerator.
No.
It might be spoiled, so I wouldn't try it. The old saying is, "When in doubt, throw it out". That said, none of the components in that dish are especialy prone to spoilage (as is shellfish for instance). It depends also on the temperatures the meal was exposed to.
It wouldn't be safe to eat salad that's been left out overnight.