The Walnut Creek Target parking is kind of space limited. Even though we all know that Tesla has some kind of national arrangement with Target, they would probably have ended up with way fewer stalls, and would have had to deal with more traffic. Plus the '1 stop shopping' Target location would have offered a limited choice of food and amenities. The rooftop parking garage location offered way more stalls, and is in an upscale location with an outstanding array of dining and shopping, both at individual stores and also the Broadway Plaza shopping center. Note too that Tesla has long had a Walnut Creek store, originally where the Apple Store is now, and now located further back in the Broadway Plaza. Tesla has also long had HPWCs in a part of the Broadway Plaza garage, not open to the public, meant for test drive/demo cars, but if you were desperate you could call the Tesla Store and they would let you in to use them.