The Audi/Lexus Dealership of Rockville, MD let me take out the some of the cars by myself. I have taken the Audi S4, Lexus LX470, and Lexus GS430 by myself. I don't know whether different dealerships have different policies. It's either they let me take out the cars because they've seen me there before, or because they consider me to be a legitimate buyer. It was fun nontheless. Have you guys taken cars out on your own?