It shall be unlawful for any person to place or install any blue retroreflective raised pavement marker on any public highway, road, or street, provided that such marker may be placed or installed by the state or any county, municipality, fire department, or employee or agent thereof solely for the purpose of marking the location of fire hydrants.
(Code 1981, §40-6-27, enacted by Ga. L. 1991, p. 943, § 1.)