I would have reacted the same way. I actually did when I bought my car.
The Mercedes garage of Antwerp is about 500 meters from where I live. I ordered the car about 20 KM from here, because the dealership here treated me the same way as Hamburg BMW did with you.
I came without appointment, and they made me wait for 3 hours. I came with an appointment, they made me wait for two while the salesman was talking to a nice blonde. When I went to him to remind him of my appointement, he asked me if I could afford a Merc. (I was wearing jeans and hadn't shaven for 48 hours)
I met his sales director at the Salon, after I had ordered the car, had them explain the whole thing to me, then saw the guy who'd sold me my E
320 CDI station. Greeted him with a big smile, and told the Antwerp guys that I'd alreday ordered mine at the other place and and thanks.
That salesman doesn't work there anymore by the way. Uppity SOB's...
P.S. I love going to the Merc garage wearing a BMW t'shirt and vice versa.
