I don't know what your status is with HHonors, but if I were anything above a basic (Blue) member I would be enraged. This is the type of thing that I would escalate beyond the particular property in question in a heartbeat. Also, I would probably stop staying at Hilton's if I was not satisfied with the resolution. Stay and point credit are just the starters.....a free night at that property or another in the future would be welcomed. There is simply no reason to give away an Elite member's room when guaranteed for late arrival. Doesn't Marriott offer something like $300 (in addition to paying for a room elsewhere for the night) if your reservation is not honored when you arrived