Well even if it's too late to move people to a different room you need to contact special needs so they can let the ship know you need scooter parking. There is no way you're getting a scooter in a balcony that is sleeping 4 people, and still expecting room to move around. Even if the scooter fits through the door - There is no more turn-down service so the couch is going to be made into a bed all cruise, and upper pulman will be brought down all cruise, with the ladder. So there's not going to be any room to walk around, let alone fit a scooter.