Okla. Stat. tit. 43, § 43-16: Soliciting in or near court house or grounds prohibited

It shall be unlawful for any person to solicit directly or

indirectly within any courthouse, premises or grounds or lots on

which a courthouse may be located in any county within the State of

Oklahoma for himself or for and on behalf of any minister of the

Gospel or other person, the performance of a marriage ceremony.