I really don't care what the hotel management might have done - probably they more or less will comply with whatever ordinances might be in effect - and that can be wildly variable, as can their enforcement.

What I can do in an emergency is under my direct control and is far more predictable than the actions of some random hotel staff.

I would think that most hotels, usually placed in an urban environment, would be close enough to a heated building of some sort.

As for lightly clad hotel guests, they are like those unprepared in any situation - they are more liable to death or serious injury than those who are prepared - nothing remarkable about that.