Hi --
Royal Caribbean does have self debarkation for passengers leaving the Explorer of the Seas in Cape Liberty, N.J. It is formally called Express Early Debarkation (EED) where you will be carrying all of your luggage off of the ship yourself as opposed to leaving your bags outside your stateroom the previous evening. In order to be able to do the EED you need to go to the front desk at some point during your cruise (always the sooner the better), and register with them for the EED on the day that you arrive back in N.J. You will be provided information as part of the debarkation announcements and will be able to leave on your own as soon as the ship has cleared customs and immigration.