Can't remember it's name, but there was a truckin' song on my "Heart Like a Wheel" 8-track that had a line "Takin' the back roads so I don't get weighed...."
The song was "Willin"...written by Lowell George of the band Little Feat
And I've been from Tucson to Tucumcari
Tehachapi to Tonopah
Driven every kind of rig that's ever been made
Driven the backroads so I wouldn't get weighed
And if you give me weed, whites and wine
And you show me a sign
And I'll be willin' to be movin'