I don't know about parking a dually in one of the parking garages, but there are a couple of outside lots down the street that are within walking distance of the terminals.
--2005 Ford F350 Lariat Crewcab 6.0, 4x4, 3.73 rear
--2016 Montana 3711FL, 40'
--2014 Wildcat 327CK, 38' SOLD