This will depend on the temperature of the home. If it is kept quite warm the the pies will go bad faster. if it in a cool place they will last longer. I would not let it go no more than 2 days. You can sit them out in the garage where it is cooler.
I myself wouldn't keep any kind of pie at room temperature for more than one day. If you don't have room in your fridge and you live where the temperatures are cool outside that's where I would keep it. As long as there is not danger of freeze.