How will guests who leave cars overnight retrieve their cars?

All cars that are left overnight must be parked in the valet lot (located further down the driveway outside of the gate) - so that when the owners come to retrieve their cars, they are able to access them regardless if the gate is open or not. If an owner of a car plans to leave the car overnight, they will retrieve the keys from the valet staff prior to departing the property and take the keys with them from the event. Then, they will already have the keys the next morning to completely independently pickup the car from the valet lot.