Have the code Nazis hit on your car?

Oklahoma has lots of counties that have no property or zoning codes. If it is a federal/state regulated industry then they take care of regulating it. As a seller a person can place restricted covenants on the property when it is sold and that is the common practice here for areas that are developed for homes that are outside the city limits.

I have a friend that is in the process of placing restricted covenants on her land to keep it from being subdivided in the future. If you saw the land you would understand as it is beautiful with a large lake and another decent size pond. Developer's would subdivide and build on it in a heartbeat since it would take no major dirt work to have 50 to 60 building sites.

So a private party can create covenants that apply to land being sold? Is the buyer bound by those covenants after he take possession of the property?