If you are concerned go to the 2$ shops and get plastic "crates" with plenty of holes and put items into these. Lets the air flow around /Through - cost less than $10-$20 to fill the whole fridge, which you won't need to do.
Don't look back - you only get a sore neck!
We sometimes travel with the fridge full. We have a little steel thing that clicks up when travelling to stop anything falling.