"Still on the Road", Geoffrey A. Landis
SS, ASFM (Asimov’s Science Fiction) December 2008 – science fantasy
A couple of guys travel the roads, driving from place to place. But their vehicle isn’t a car, it’s a spaceship. They give another guy a ride to a planet near Arcturus.
A very short story - less than two pages. It has a folksy feel to it.