If the emergency vehicles would just shut their flashing lights, blinkers etc. things would be so much different.
I see no need for them to be on once they’ve reached their destination, other than to solicit the attention of all around them, both lanes, both directions. Where there’s a need to secure the area, I’m not referring to, and there’s probably a more inconspicuous way pf going about it, not to advertise their presence to everyone within 10 radial miles.. I’m referring to a scene where there’s absolutely NO NEED for safety/security (plenty of times).. why cause the needless extra delay in the opposite direction due to someone(s) seeking attention… the live they save may be…