I wasn’t on the BSD last year when I spent several weeks in hotels whilst working.
But what I did was have a good breakfast – eggs, mushrooms, beans, tomatoes (add sausage and bacon if you eat them) plus a white coffee (not cappuccino).
Take a bottle of water to work and drink a lot during the day, but no lunch
Then a salad for dinner with either fish or meat, usually possible with a combination of starter plus side salad if none of the mains suit
Ahead of dinner I would go to the hotel gym and do a short workout on the running machine (but intensive as I could make it)- perhaps total of only 15 minutes but running faster than comfortable for, say, 3 minutes and then slowing to a fast walk.
If I had only been swerving refined carbs as well, I would have lost even more weight!
So you could think of your hotel stay as being an opportunity rather than a risk?
Hope helpful ๐