How exactly does that work, when you are charged daily for parking at a park if you are not a resort guest? Parking at a resort is only allowed for guests of that resort with the exception of valet parking or for 3 hours for non resort guests who are there to dine or shop. I'm not sure what the current parking regulations are at DS.
Why would anyone want to leave a rental car anywhere overnight other than where they are staying? Obviously getting too drunk to drive would be one reason. But I can't think of another.