I'll let someone else answer your IPO/CL questions. Yes, your parents should be able to park temporarily in guest parking. There is a guard station on the way in to the entrance of the Poly, you will be required to stop and provide your reservation information. They can then answer any additional parking questions you have. Normally, if it was your own car, you would be handed a parking pass to keep on your dashboard for the duration of your stay. We have found at Deluxe resorts that we are free to hand carry all our own luggage up to our rooms. However, we have not been able to "borrow" a luggage cart from Bell Services to transport our luggage to our rooms. You will need to utilize Bell Services if you want to go that route.