Traffic Control In the South

I love living in Nashville/Franklin and a big part of the charm is Southern Hospitality which really does exist. For instance,turning the blinker on and having the car behind you slow down to let you in, as opposed to speeding up to cut you off, is still a novelty to me after having lived so long in Northern VA. Sometime though I do pine for a little Yankee efficiency. Specifically, why is it that the police in this part of the country can't figure out that clearing a wreck from the highway, as opposed to writing up the reports in the middle of traffic/rush hour is a detriment to all us hard-working folk arriving to the job on time?