(a) The department shall develop and implement a move over or slow down public awareness campaign designed to promote compliance with and improve public awareness of the requirements of § 545.157 concerning the passing of certain vehicles.
(b) The department may consult and coordinate with the Department of Public Safety and the Texas Department of Motor Vehicles as the department considers necessary to develop or implement the campaign.

(c) In implementing the campaign, the department may engage in online advocacy, issue public service announcements, distribute materials, and post signage on roadways relating to the campaign.
(d) The department may pay the costs of the campaign and its administration from:
(1) gifts, grants, or donations;
(2) matching funds; and
(3) other funds made available for that purpose, including available department revenue.