Well, when my little pied boy came, no thanks to a brain dead fedex lady, he was so cold he was stiff and could barely move.
I just held him in my hands, since I have very warm hands, and breathed gently on him for a little while. He slowly came around, and after about 20 minutes he seemed fine. I put him in his nice warm tub, and he did fine, not even a sign of an RI.
So, it probably depends on the individual snake, but my little guy did just fine.
Gale