Provided, that if any such building used for worship and religious activities, any public or private school, any public park or playground, any public library or any land zoned or used for residential purposes shall be established within one thousand (1,000) feet of any such premises after the premises have been established, this shall not be a bar to the continuation of the business so long as it has been in continuous force and effect. The distance indicated in this subsection shall be measured from the nearest property line of such church or school to the nearest public entrance door of the premises of the adult novelty shop along the street right-of-way line providing the nearest direct route usually traveled by pedestrians between such points. For purposes of determining measured distance, property situated on the opposite side of the street from such church or school shall be considered as if it were located on the same side of the street with such church or school.
Okla. Stat. tit. 11, § 22-109.1