Cleanup in Aisle 4

In addition to the eighteen wheeler that I noticed lying on its side that I mentioned in a my previous blog entry, while driving across Pennsylvania on I-80 I also noticed cars, a pickup truck, and a van that had rolled off the side of the road and some ran into trees, but were just left there with yellow tape around them.

Is this a way that Pennsylvania encourages the interstate drivers to drive more carefully?

Or is there a lack of wrecker services in Pennsylvania?

Perplexed.