By Michelle Robertson, SFGATE Updated 4:00 am PDT, Wednesday, October 24, 2018 Now Playing: SFGATE visited San Francisco's first cashierless Amazon Go store on its opening day. Media: Katie Wood / SFGATE Something was happening on the corner of Battery and California streets in San Francisco's Financial District Tuesday afternoon. Smiling men and women in orange polos and quarter zips hovered on the sidewalk while workers on their lunch breaks fumbled with cell phones. "Have you downloaded the app? You need the app," one orange shirt said to a man in a puffer jacket. The puffer jacket had the app, yes, but he couldn't remember the password for his Amazon account. He fiddled for a few seconds then, Bingo! The golden ticket required for entry to San Francisco's first Amazon Go store appeared. It was a QR code. The rest of the experience went smoothly: He scanned the code at the entry gate and was free to grab the items he needed, ranging from Advil and Sunchips … [Read more...] about I wanted to hate San Francisco’s new Amazon Go store. I loved it.