I had a another thought J9. I don't know if you are sharing a room with your friend, but how about making sure there is no booze in the room?! You can ask the hotel to have it removed. It might seem OTT but I think you are right to be nervous and should do everything you can to prioritize your recovery.
You might also want to read this thread that you predicament reminded me of:
http://www.soberrecovery.com/forums/...-vacation.html