For #2 you could try immediately spawning EMS, Coroner, or Tow so they are closer and not have to move up through traffic but I stop traffic, then I use either Scene Manager or Police Tape depending on the scene to help control traffic direction so I can start it back to flowing and continue to process my scene until I am done.
You could have overlapping controller binds for certain things (maybe you need to add a modifier button for certain actions) but you kinda need to pick and chose what binds you want to have on the controller and which to leave on keyboard as controller is limited depending on how many different mods/plugins you are using.
Some individual callouts are disabled but simultaneously running:
Simple Callouts
Attempted Crime Callouts
BCallouts
Blaine County Callouts
Callouts T
Callouts V
Epic Events
First Callouts
JaRM Callouts
OTB Callouts
Peter U Callouts
Pragmatic Callouts
Red Callouts
Ridiculous Callouts
Super Callouts
United Callouts
Variety Callouts
Crash after accepting bicycle on freeway callout using grammar police and immersive dispatch. I have just disabled it for the time being.
RagePluginHook.log