I understand they have check in at 3pm. I've been ...

I understand they have check in at 3pm. I've been on the road for over 10 hours and I am exhausted. I asked to see if there was anyway possible to do an early check in. They said there is nothing they can do and I would have to wait. I have been sitting in there parking lot since 930am. I have been to soo many hotels and they would be nice enough to accommodate the best way they can. Last time I satyr at a double tree and will be cancelling my future reservations.