I had the same feelings when I went to pick up mine.
While finance was drawing up my paperwork, I asked the sales person where my car was so I could look at it. She pointed out the door and said, "Right there."
I didn't see my car so I asked her where, and she said, "The red one right there."
I informed her that my car was supposed to be "BLUE!".
Now, to be honest, this sales person was filling in for the salesperson I usually dealt with, but had a function to attend, but that still didn't keep my heart from leaping into my throat, when I thought they had screwed it up.
My car was still in the wash rack at the time and was soon brought around front.