We've run into similar issues with some of the animals we've had over the years. Nothing that a state wildlife official will even consider picking up and rehabbing in an actual facility, but nothing that a vet can legally treat since you're not supposed to have them. Luckily, we were friends with our vet at the time, and he gave us a lot of unofficial advice.

It's pretty impressive that you went to all that trouble and risked getting those meds for your snakes though.