Tex. Transp. Code § 21.154
(a) A person, including an officer, agent, servant, or employee of a corporation, is liable for a civil penalty if the person:
(c) The attorney general or the county or district attorney in the county in which the violation occurs shall institute and conduct a suit for the penalty:
Acts 1995, 74th Leg., ch. 165, Sec. 1, eff. Sept. 1, 1995.