https://www.gsblaw.com/duff-on-hospitality-law/guest-room-pr...
https://scholarship.shu.edu/cgi/viewcontent.cgi?article=1048...
From my very basic understanding of what transpired, the hotel security were trespassing by entering a rented room. I'm not altogether familiar with state law in Nevada, but that could certainly be argued in California.
Hotel Security aren't the federal government. The 4th amendment? C'mon.
FWIW; at camping festivals, I know your tent also is a temporary residence and requires a warrant for search.
As I mentioned, this sounds like a case of trespassing. If it were me, I’d be pursuing charges on that basis.
Source, go through the body scanners at the TSA. Worn down, can't be bothered to "echo FUUUUUUUU > /dev/null" any more.
Just look at this situation. Unless hotel security have been breaking the law, which is unlikely, staying at these hotels means they can legally search your room and possibly your things. The only thing standing in the way of this is the reaction from the organizers and attendees. So if you care about your rights you don't really have much of a choice than to react and moving, at least out of Las Vegas, shouldn't be a hard decision.
And this would be illegal in at least part of Europe since a hotel room is categorized as a temporary residence.