When Admiral Kilbride is put into the ambulance, it is an L.A. County ambulance, yet the police cars are LAPD. If the shooting happened in the city of L.A., an LAFD ambulance would respond, not L.A. county.
Pacific Park in Santa Monica is closed, presumingly due to COVID-19 pandemic off-screen, it can be clearly seen there is no one on the rides , but apparently background noise to the contrary tells otherwise.