I'm not too sure about this, but is the song to go with Johnny Rivers (Artist J) "Six days on the Road", which he covered in 1974?
The "ultimate overworked rig driver's lament", I thought it might link with Song Picture 8, the highway at night.
My hometown's coming in sight,
If you think I'm happy you're right,
Six days on the road and I'm gonna make it home tonight.