Well, I for one do notice things like this. I cringe when I go into a business and see things that indicate to me that not all is right for the employees. I have never rented a car, but honestly would be appalled to see people washing cars in dress clothes.

Unless those people are given a nice clothing allowance for all the clothes I'm sure get ruined, I think it's totally inappropriate to have people washing cars in dress clothes. Even then, it's wasteful. People should dress for the job.