This behavior is similar in GTA IV, with the LCPD and Security Guards.This is because they are not coded as law enforcement. Or when she is attacking the player and he/she calls the police, the officers will arrive and attack the female ranger, despite the fact that she is also a law enforcement officer. In fact, when the police are shooting at the player, she will draw out her weapon and attack the police.Interestingly, the player won't receive a wanted level, not even when she is harmed or killed. Yet she will behave like regular police officers.
Indeed, that very patch still with 'Columbia, MO' on it can be found in the game.
San Andreas Park Ranger badge.(After the Los Santos Summer Special update) Trivia