Only knowing what I read, but a general comment
Popo only has a few seconds/minutes to respond in many cases to save your life when 911 is called.
See the lights, clear the way.
I usually get out of the way if I see Popo behind me. The Officers have a thankless job.
In many cities, they are called to a volcano eruption, yet cursed and fought when they arrive. If they have an error or mistake, the citizen is quick to slam with comments.
Imagine being the first one to arrive where you know some nut case is holding others with a gun as the report show...seconds seem like minutes, minutes seems like hours. If someone has a gun pointed at your head, you don't want a cop driving at the posted speed limit to save you.