They're treated separately for purposes of criminal prosecution, i.e. in a split county the defendant is tried in the same judicial district in the county in which he is alleged to have committed the offense.
Having read this act a couple of times, that I never heard of until a few minutes ago, I can see how ArkansasCarry thinks it has enacted limited constitutional carry. This is going to be very interesting to see how this plays out!
When does it take effect?
edit: added "limited"