dozen robo taxis froze, creating a traffic jam in san francisco s north beach neighborhood. i looked and there were no drivers in them. reporter: cruise posted on social media said, a large festival causing delayed connectivity to our vehicles, and it was invesestigating to o prprevent the e situation n from happppening agaiain. crcruise is nonow cutting g its francicisco fleet t in half asae city is pupushing the e state to rescind itits decisionon to let these e vehicles o operate aror the clock.k. jake ward, nbc news, san francisco. still ahead tonight, protests over the death of a beloved orca in miami and the questions now being asked. plus, the breaking point this airline pilot says he reached that led him to use an ax to attack a parking gate.