I find it hard to believe
Marchex also attempted to measure more general indications of courtesy—using "please" and "thank you," that kind of thing. And you know who came in for another shout-out? Hello again, Ohio. The other least-courteous states, in order: Wisconsin, which took first place, Massachusetts, Indiana, and Tennessee.
And the most courteous? South Carolina (first place!), North Carolina, Maryland, Louisiana, and Georgia.