This is a bad bad guest. Coming home drunk and disorderly is worse than the AC demands. I don’t know why you were gentle asking them to quiet down. What crap guests.
But back to your question… you could make up something (sometimes little white lies are needed) saying it automatically shuts off at 74 degrees and you can’t override it. Sorry, old system. Or something. Just because you say it in the listing doesn’t mean they get to turn it on. They sound more like hotel guests to me.
I just had two guests leave, thank god, who were hot when it wasn’t hot. …the minute they got here went out and bought fans for the room and ran them full blast without telling me or even giving me the courtesy of knowing they brought appliances into the room . I do have box fans available but didn’t offer them because it’s not hot here! It was annoying that they ran these 24 hours a day, so I left a bad review, as it is in my house rules to conserve because our island has the highest electric rate in the country and they disregarded my rules… plus they had not only done that but had also done a few really other annoying things. Thumbs down,
I think you need to tell the guests if they come back drunk and disorderly to your home again they will be asked to leave. And then set your countdown timer and start composing your bad review.