Franken ... Yes your most likely right phone is probably ringing & he most likely has got about all the work a 0ne or 2 person crew can handle most of the time, even though seeing that van you think low cost painter.
Now take the correct step in branding & ya get a larger crew if ya want, higher priced work & better customers, & all that comes with a more professional looking business That works on it's brand.
Now turning down work that looks like that book to read on the van, is also working on YOUR brand.
It goes both ways .. To you it is just a one sale, to them it means several sales when branding is done right.