In reply to Edgar (aka MrConsumer).

This happened to me at Hard Rock in Atlantic City. I was charged $250 and I’m a non smoker. I did get the charge reversed after a week of complaints to the hotel and to Hard Rock HQ, as well as the BBB.
There may be something to the dust or heat. In my situation I arrived at my room around 10:15pm, found the room very cold as AC was set to 64, so I turned the temp up to 68 and a few minutes later the heat kicked on. They told me the sensor went off at 10:30. Coincidence?