Where I'm from (The Pacific Northwest), people pull over to the side of the road immediately whenever an ambulance has its lights flashing and sirens blaring. It's like there are free tacos being served hot and fresh from the curb to whomever gets there the fastest.
But in Missouri, it's not quite as pronounced. Missouri drivers seem to pull over to the side with all the expediency and effort of a napping child roused from sleep trying to get out of bed. "In a minute, jeez."
It's truly bizarre to me. And what with all the gunshots and such.