I hate to tell you this, but the roundup doesn't sell snakes to individuals like you're thinking. They kill all of them.
Also, if they would sell to you, you don't want to become another source of income for the roundup people. The more money that can be made, the more they'll be out there the next year gassing and collecting. There's no way to rescue the snakes by buying them. Sorry.
: [snip]As soon as i get my liscence next year, im going to go and buy as many of the snakes as i can afford, drive a ways out into the country away from people and release them. Thanks for bringing up this issue.