The San Andreas Highway Patrol is a parody of the California Highway Patrol. They are the state police for the island.  Highway Patrol  and the Park Rangers share some commonalities. Both agencies are under the state law enforcement umbrella sharing the same pension and benefit structure. They go through the same primary academy in Washington State. After graduating, the cadets  enter their secondary school pipeline for either Highway Patrol or Park Ranger.  After 5 years of service in their primary position, they can receive training in their counterpart's duties and earn a rating to work in both agencies. This helps with staffing  on the Island.