ScurvyDog is right. The airport is right next to the cruise port. (You can see the ships docked as you land.) As long as there are no debarkation problems (ie: no body that hasn't checked in with U.S. Customs who is holding up the entire ship, or drug problems, or anything like that.) you should be able to make it with no problems. We're Platinum as well, and are almost always off the ship by 9 A.M. at the latest.
Marine, Pilot, Singer, Tuba Player, Carnival "Diamond"!