To add to Dennis' statement, even if a snake is covered (allowed to breed, sell) under the propogation permit, if it was wild caught you still can't sell (including trade), import, or export it, plus there is a possession limit of two* generally speaking.
Except as otherwise prohibited (Crocodilains, all non-native venomous, Snapping Turtles.....several others) by state or federal laws, non native reptiles and amphib may be imported, exported, possessed, propogated, purchased, sold, without permit. (CAR 14 5-40f).
Since it is a different Subspecies you technically** should be able to sell or buy your non-native Ringneck.
*There are otherwise specified limits for certain herps. Limit of one for CA mountain Kingsnakes (none from certain localities), Limit of four CA kings and Gophers, etc, etc.
** In Kansas it is unlawful to take any native wildlife for sale, exchange, etc, so even though CA may not regulate it's sale, you could be in violation of a federal law (I don't think it's under cites, maybe it's the Lacey act)which says you can't circumvent a states law by taking it across state lines and violating that states law in the new state, or something to that effect.
Hope that helps, I know it is kind of complicated, but it seems the laws effecting us herpers always are. I stopped breeding CA natives a couple years ago, so I may not be current with my info. If my information is outdated or wrong, somebody post clarification.