Unless something has changed since May, they do have Emerald/Executive Aisle service. Both of my reservations in May/June listed "Counter" as the level of service. Both times I went straight out to the lot, chose a vehicle (keys were in them) and drove up to the booth. No problems from the person at the booth. It was explained to me that during early/late hours and off-season there may not be enough staff and all reservations have to go to the counter. I would say check and see if there is someone at the booth. If so, you are probably fine to pick your car and go.