I am stubborn and given the circumstances, I would have like to see if they would actually physically remove me from that room. I know of colleagues who have had a similar experience but simply stated that they would not be leaving because this was a reservation problem (your word against theirs) and let them take the next step. It would be poor customer relations especially for a frequent guest.
Then again, trying to find your belongings at "Lost and Found" in the hotel wouldn't be any fun either.