Yeah, a snake would repeatedly push and rub its face on the mesh, trying to find weak points, and it would damage its face badly. Mesh is bad for snakes.
On the other hand, if you were able to attach the Coroplast to the INSIDE, instead of the outside, It might actually work. It's far from the best solution I've seen, but it is, just remotely, possible. You would have to find some way to seal the seams, or the snake would push into them, and scratch itself up badly, and possibly even catch itself in them by forcing them. Some sort of shower stripping, applied with aquarium sealant, maybe?