every three months.
moisture forms on outside of refrigerator not unusual during periods of high humidity. wipe surface dry.
moisture collects inside (in humid weather, air carries moisture into refrigerator when door is opened) too frequent or too long door openings.
fresh food/freezer too cold temperature control set too cold. can i take action against parties other than the at-fault driver?
yes. not only do you have an action against the driver of the vehicle, but you also have an action against the owner of the vehicle. it does not matter if they owner of the vehicle has a commercial policy or is an individual owner. 