The fourth amendment absolutely applies to hotel rooms.
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.