I don't stay in hotels often but, I've never had a problem with the room being cleaned up if I just hang the Do Not Disturb sign on the door. As for this video it doesn't disturb me, she didn't steal anything.
Truthfully, she looks more like someone the cops sent in pretending to be a room cleaner while she was actually looking for evidence of something. Maybe she really is the cleaning lady and had recently gotten into trouble. The police cut her a deal saying if she brings them evidence of a crime she will be better off. So she starts looking through stuff in the rooms to she if she can find something wrong. All the stuff she looks at is the sort of thing you would look through if you were trying to find out if someone is doing something wrong.
Maybe she saw the guy come in the hotel and though he was cute. She is looking for something they have in common so she can start up a conversation with him and ,,,,well you know.
Truth is without talking to her we will never know why she did it. Could be countless number of reasons. Let your imagination run wild.