Perhaps I am the only one but I pre-cool my fridge for 24 hrs before leaving, load it with cold and frozen food, and shut it off. For a couple/few hours, I've noticed it stays plenty cool if the doors remain closed. When I get to where I am going, I turn it on.
Mike, Sue, Sissy and Little Man
2015 Ford F350 Lariat FX4 6.7 CC DRW
2015 Eagle Premier 351RSTS