"Service car" to be displayed on windshield

La. Rev. Stat. § 45:190, under Public Utilities and Carriers.

La. Rev. Stat. § 45:190

§190. "Service car" to be displayed on windshield The words "service car" shall be displayed on the windshield in plain view on all motor-driven vehicles coming under the provisions of R.S. 45:184 through 45:191.