Does anyone know what this could be?

[Skiploder]

I have seen a snake with body-wide blisters like that from an unregulated heat lamp at the veterinary hospital where I work. The snake had no direct access to the lamp, but was still burned.

I'm also in the Bay Area and would love to know more about both the vet who saw this animal and how the animal was treated. Can you describe what type of snake it was, the lamp set up, etc. Both vets I use will take photos of burns and other skin issues - especially ones that do not fit the "normal" presentations - but also to document the healing process.