Well, I don't see anything wrong with the box, structural wise, the styrofoam seems to fit tight enough to be acceptable, and it's packed according to standards. So, I don't see how he can be a noob, the packing is standard.

Soooo, unless he shipped the snake dead, those heat packs by some freak accident of bad luck cooked it, and now he seems to just be avoiding you.

Good luck