I do agree it's easy for your employer to know your finances. But if your Manager is asking you to do something of that nature, I strongly recommend dusting off the resume. By the way in many parts of the country (read flyover country) fancy cars in the lot can make a bad impression of the service or product being too expensive for that customer. Lot of people in Real Estate try to impress with fancy cars, but for people with half a brain, they know that those brokers and agents are chiseling more commission than they actually earned. My policy on snooping Managers (personal life anyway) is to make their jobs more difficult as in my case I'm usually their boss. And by the way I'm debt free except for one small car loan.
There's a fine line there. On one hand, if a guy came to my house to discuss a product driving a rusted heap, I'd wonder what was up. Also, if he were driving an Aston-Martin, I would wonder what was going on.