I'm back as the OP...
The hotel front desk was pretty rude last night as they were getting beaten up by a lot of very unhappy guests. The alarm was going off for maybe 3 minutes every 5 minutes (on and off) from 11:00 until 12:45.
At 12:30, I decided to check out and move to the W which is about 5 minutes away since the front desk said engineering was working on the problem, but the front desk had no info on what was wrong.
I went back to my room and by the time I packed and got downstairs, they had fixed the thing.
It wound up being just shy of 2 hours start to finish.
I was really disappointed when I got up this morning and there was no apology note. They could have set up some breakfast in the lobby as an apology or something like that...
I asked how they were handling it when I got back to the hotel tonight and was told I could get 50% back on my room rate for last night or 3,000 points (in a category 3 hotel).
They continue to take no responsibility for the alarm, but are apologizing for the "guest experience" issues