I've read that members of rental company loyalty schemes can pick up their cars without needing to queue and speak to anyone. I'm not sure if I could benefit from joining any kind of club though. I've already booked and paid for a 3 week rental with Dollar in Vegas. I paid through USrentacar and have a voucher I need to take with me. Is there anything I could do to speed up the process, or will I just need to queue at the desk?