If you are in a hotel room,it doesn't matter if you give consent or not.It's not a residence.

I'm sure many hotels are aware of what goes on but just wink at it unless someone complains.  You'd hope that someone from the hotel would ask her to go elsewhere before calling the cops...  On the other hand, if another guest called LE, all bets are off.  
Still, they have no right to search her room (once rented, it's her domicile for the duration).  That is unless they get an undercover into the room to get propositioned.  So they busted her & she should beat the rap...  but be so bummed that she goes elsewhere.  
skb

keep the noise down and stay discreet.  Say nothing at all until the door is shut behind you.

Here's a hint that Bev taught me:

Roll up a towel and place it at the bottom of the room door to keep noise from traveling out to the corridor.

Seriously, though I agree there is risk not many touring providers are going to change rooms every night.  The fact is a smart touring lady isn't going to put herself in a position where she attracts the attention of the hotel or LE to begin with. These are the ladies that you want to see.  Anytime that I have felt unsafe in a room with a woman it has been when I threw caution out the window and let my little head do my thinking for me and saw a lady that I knew was indiscreet as soon as I talked to her on the phone or saw that jumbo box of condoms on the night stand...

Instead of worrying about this sort of thing I would recommend you spend your down time researching quality well-reviewed ladies who have been at this for a while and know how to conduct their business. I haven't worried about LE crashing down the door in years...