I telephone Princess last week and they told me only wine and water is allowed to be taken on board. Youcan try and see what happens. Maybe it depends who is doing the inspection. Or this Princess operator gave me the wrong info.
What is the refrigerator for? I mean can you get sodas from the soda card and then keep them in the fridge to have at your convenience and in private if you choose? I assume the fridge is there for a reason. Soda, water, booze, cream for coffee or keeping candy bars and leftovers cold?