Do Not Eat it. Meats can only be safely re-frozen if there are still ice crystals in the piece (well below 40 degrees).

Here's a tip I will offer to anyone concerned:

Invest in a freezer alarm. Check out this site -

http://cdnw.com/site/pdf/products/ta10.pdf

This is just one of many types available. It's cheap insurance. I know a number of taxidermists who use them.

There are even models that will auto-dial a programmed phone number to notify you when you aren't home

Shoot often - Hunt always