I had a similar loss of fridge when we went on vacation one time and the power went off some time while we were gone and I had not emptied the freezer all the way as it seemed idiotic to garbage all that perfectly good food when we were only gone for 2 weeks.
"Tom, why are you burying fish in your yard? Don't you have better things to be doing like evacuating or collecting fire wood right now?"
Trash doesn't run because trees and lines are down, btw.
The freezer at least contains the smell a bit. That fish outdoors in the heat could start smelling even worse.
My experience comes from living countryside with two cats dragging in rabbits, rats, pheasants and two/three daily mice and birds in. My cats prefer cat-food, so they drag in the dead animals, tuck it under the couch or behind the fridge, and then eat their favorite chunks, the assholes.
Throwing it on the compost heap smells way worse and attracts flies. than digging a ~3cm deep hole and covering it. A mouse under the ground, is gone in less than a week (I guess its eaten by worms and insects mostly). My garden is doing very well.
But seriously, why not eat BBQ fish every day?
Chest freezer would have had less of an impact, but still noticeable.