[jedberg]

> Good. Washing work vehicles so that they are always sparkling seems like a waste of resources.

The point of the clean truck is that it shows the delivery company it willing to lose money to maintain their equipment. It means they are probably also willing to lose money to care for your package better.

It's the same reason Lexus requires their mechanics to wear white lab coats. To show you that they are willing to spend money to take care of your stuff.