I was wondering, too. I found this:
Originally Posted by brianpinsky
Universal Studios Orlando has two garages with 21,000 spaces, 52 escalators, and 350 call-buttons lost guests can use to seek help. Guests park in sections with movie themes and strong reminders. In "King Kong," they see his image everywhere, and hear his roar.
The state-of-the-art enclosed parking garage complete with protection from the elements, a 200-camera security system, moving sidewalks, escalators and elevators, on-site wheelchair rental and an on-site kennel. Vehicles can leave the garage and return the same day by stopping at the toll plaza upon re-entry and presenting their parking ticket.