The best you can likely do is drag your feet getting off. You can sleep a little longer, then put your bags outside your room door on the last night. By using their luggage service, this will make your disembark time longer. I think it would be the longest, based on what deck you will be on that week. I THINK the higher the deck, the longer it will take you to get off. If you can get off at 10 or 11, by the time you get through customs then, and get to the airport, hopefully it would be close to noon. Still, you will still have to wait a while though before your flight.
How about get off early and rent a car for a few hours? If you pick the right rental car place, you can then get a FREE ride to the airport on THEIR shuttle. Take a car for a few hours, bring it back to the airport again, same day. If you get a free airport shuttle to the airport, the money saved here can offset your car rental