(1) Pursuant to chapter 34.05 RCW, the department and the Washington state patrol shall jointly adopt rules governing the conduct and the safety of the traveling public relating to the use and control of rest areas and other areas as designated in RCW 47.12.250. Nothing herein may be construed as limiting the powers of the department as provided by law.
(2) Except as otherwise provided in this section, any person violating this section or any rule or regulation adopted pursuant to this section is guilty of a misdemeanor.
(3)(a) Except as provided in (b) of this subsection, violation of such a rule or regulation relating to traffic including parking, standing, stopping, and pedestrian offenses is a traffic infraction.
(b) Violation of such a rule or regulation equivalent to those provisions of Title 46 RCW set forth in RCW 46.63.020 remains a misdemeanor.