Hunting in 80+ degree temperatures where the low at night is only in the 60's, I'd say the meat would be spoiled by the time you recovered the animal. even so, its always better on the conscience when you can lay your eyes on the animal and know for sure it died.
I recovered a doe last fall after she laid all night in 50's temps. She ate just fine.
I'd like to hear from someone knowledgeable about spoiling meat....and maybe learn something constructive from this post.