Yes — this is the trade Metcalf Media's advertising work started in. Miller Mobile Detailing here in Tulsa began at $10 a day and booked $2,500 of work in his first week, and over six months $4,000 in ad spend produced $40,000+ contracted.
What makes detailing different from a trade with a shop is that the drive is unbilled. A job forty minutes away and a job two streets over pay the same and cost completely different amounts, so the first thing built isn't the creative — it's the map. Campaigns run to the towns and neighborhoods worth the windshield time, not to a circle drawn around a pin.
After that it's speed. The ticket is small enough that nobody deliberates, so a text back inside sixty seconds is frequently the entire competitive advantage, and a calendar somebody can actually book into beats a phone call they have to remember to make.