I just got my model 3 a couple weeks ago and decided to try out the summon feature. We went to an empty parking lot where an old Kmart used to be (but closed a couple of years ago) and decided to try and get it to navigate to us. It seemed to have a really hard time despite the stalls being well marked. Does it require other vehicles around to establish where the lanes are? It didn't seem to be able to recognize them in the empty lot at all, the car cut straight across the stalls multiple times then seemed to stop itself once it realized what it was doing. Overall, my friends and I were not particularly impressed. Am I doing something wrong?