Even if it is legal, and even if the snake has never been exposed to other captive herps that it could have picked up exotic germs from, and even if you find a location unlikely to be found by ignorant, fearful humans (that is a LOT of ifs!), there is STILL a major problem, touched upon by Nanci. That is that most suitable habitats already have enough individuals of a given species to populate that habitat. There is always competition for resources. As a few residents die off, it creates space and food for new ones. But the corns (or other species that might compete with them) that grew up in that particular place will have the advantage in competing with a newcomer. So it is more likely that the newcomer will fall prey to something bigger and hungry, or that the newcomer will starve if food is scarce. So unless some sort of natural disaster happened recently to kill off a lot of resident snakes, and now the habitat has recovered sufficiently to reintroduce them, I would say that it is generally better to keep it where it has been doing well, rather than to turn its world upside down at this stage.
IMO (from my observations), snakes tend to be stressed by change. If they are doing well in a particular environment, I feel they are going to be "happier" (= less stressed) by not changing it.