It has happened to us too, twice. The first time, we were in a panic
because our freezers and refers are always well stocked. We found out about a small grocery store near us who has lots of walk in freezers. They do a lot of processing of deer, elk, etc. They had lots of space available for our frozen stuff and charged us a very small daily fee. The second time,many years later, we called them right away, and they said, "bring it on in!"
So the idea is to look around your community and find someone who has lots of freezer space available. Usually a mom and pop type operation will be more receptive to assisting you, but you might be surprised to find something in the corporate world, too.