Looking at Terminal 18, it seems that the available parking, about 600 spots according to the Port's site, isn't enough to handle a ship like the Oasis of the Seas which holds 6,000+ passengers? I know that there are plenty of passengers that uber/shuttle/taxi to the terminal, but it seems reasonable to expect there to be more than 600 families that drive themselves to the terminal.
Has anyone heard of the terminal running out of parking? I've never been to this port, only Port Canaveral, so maybe I'm missing something.