There's a coca-cola bottling plant in the town where I'm from. Most of my work is out of shreveport-bossier and this one would be nice as it is a few miles from the house. They have right at 20 trucks and do not have anyone washing and the drivers have told me they never have but a few shop hands when they're sitting still. What would be the best way to approach them and explain to them why they need to start paying for someone to wash their trucks?