The parking area is patroled by security and they do have cameras.
When you check in put your luggage inside at the baggage claim area.Its free and they will put in your room when its ready.Why make the long walk when you can stow your luggage when you arrive,another great benifet of staying on-site.But when I ask them to bring my stuff to the room I tip them.
Or you can do the mile walk between your car and room!!