I would guess that you will be ok. By the time the cold weather set in most of that water should have evaporated. Also as already mentioned there is room for expansion.
2011 Eagle 330RLTS with just about every option.
2017 Silverado 1500 4x4 5.3 with tow package. (no, we don't tow the Jayco with it.)
2018 Surveyor 265RLDS well equipped.
Life in the slow lane is still life.