several crashes and other malfunctions linked to the autonomous vehicles. cnn s veronica miracle has more on this. you were inside one of these wild things, veronica. what s happening there? reporter: that s right, kate. the future of transportation is here. of course, with any new innovation, there are always issues in the beginning. that s what the city of san francisco is experiencing with a couple of autonomous vehicle companies. traffic chaos on the streets of san francisco caused by cars with no one in the driver s seat. there s, like, one, two, three, four cruise cars blocking. no one can get through. reporter: these driverless cabs stalled for half an hour outside the out lands music festivals.