welcome to the forum montanaguy!
i never had much success looking up county ordinances. give me a city and i'm all over it. hopefully somebody smarter than me will come along with an answer for you. but i would think that since Jeff City is in Cole county, and OC is legal there, you might be good to go at least there.
always confirm for yourself though.
we do have a few members from the Jefferson City area. they should be along shortly.