Did it look like you have money and were you in a place where people that look like you have money?
As an aside, the dealers with the higher echelon cars that I've been to, even just wandering around, seem to be more awesome people. I'm especially talking about audi (used), bmw (new and used), Lamborghini (new)). Even the Subaru dealer I went to with clear motive to just test drive was very polite. Direct, but polite, and that's all I could ask for.
I wear boat shots, a nice pair of Levis and a nice polo. Same as I always wear.
Audi and BMW have specifically treated me like a piece of crap every time I've stepped into their showroom (maybe three times each) for the past 15 years. Nowadays I don't set foot in either because they no longer sell cars I'm interested in (R8 a bit too dear for my budget).
I've worked at BMW, Mercedes, and Hyundai dealerships. BMWs are just straight up nicer to drive than Hyundais. People who work at dealerships bounce around from lot to lot pretty casually, and the people who love cars do their best to bounce onto lots that have good cars. Salesmen are out to make money either way, but if you go to a BMW lot, you're much more likely to find a guy who has earned a place at a high end dealership because he likes the cars. So he's not JUST going to be after your wallet.
As an aside, the dealers with the higher echelon cars that I've been to, even just wandering around, seem to be more awesome people. I'm especially talking about audi (used), bmw (new and used), Lamborghini (new)). Even the Subaru dealer I went to with clear motive to just test drive was very polite. Direct, but polite, and that's all I could ask for.