winshield time
n.— «Salespeople call it “face time.” In Missouri, they rue “windshield time”—the hours spent driving to get to customers.» —“Tough Choices: Cutting Output, IBM Tells Some Workers: Move, Retire or Quit” by Dennis Kneale in Greencastle, Indiana Wall Street Journal Apr. 8, 1987. (source: Double-Tongued Dictionary)