In accordance with § 21–1119 of the Transportation Article, the County Commissioners of Garrett County and the County Commissioners of St. Mary’s County may: designate a county road to be an “emergency snow route”; regulate travel on an emergency snow route; provide for a method of declaring a snow emergency; prohibit the parking or abandoning of a vehicle on an emergency snow route during a snow emergency; and authorize the removal of a vehicle parked or abandoned on an emergency snow route during a snow emergency.