We were on the same cruise and when we arrived we were told by CPS representative to stay in car and somebody would soon be with us. After a wait of a few minutes our details were taken, she took photos of the car and ask for set of keys. When she finished she said please leave your window open and if you are able to unload your car and take luggage across the road to the appropriate "hole" for your stateroom deck and the staff would take the luggage of us. There were 1 or 2 porters about I assume you only help those who couldn't unload their own luggage due to being elderly or disabled. It worked very well and seamless with no problems. Anyone else arriving by taxi or any other means i.e not CPS will have differing methods.