I am pretty sure i'm not the only one tired of getting hit while performing a traffic stop. Where i'm from, and in many areas you are obliged by law to move over to the other lane when a police officer or an emergency vehicle is on the side of the road.

I know nothing about coding, but would it be possible for a script to make vehicles coming from behind move over when your car is stationary with lights flashing? It would help highway pullovers and stop people from blocking the street behind you when you pullover a car in a narrow city street as well.

Also, with ELS now out for GTA V, this needs to be a thing:

I believe if you change the traffic advisor pattern on an ELS enabled vehicle it should help.

Or you could make the car pull to a safer spot using mimic. The traffic in GTA V is reckless on purpose and I don't think there is much modders can change in that regard.

It's possible to do this. But im sure I don't speak for myself that GTA's AI is an absolute pain. Either way, this seems more like an ELS related feature that should be added (if not already).