As long as you don't have ants....

If they're custard or cream-based, make sure you cool them completely before refrigerating them. And if your pies are not custard or cream-based, it's totally fine to leave them out, but don't cover them with plastic wrap or the crust will lose its snap.

yes that should be fine. Just as long as it isn't custard or cream based.

What kind of pies? Custard types need to be refrigerated.