>Luckily, no one was hurt.
It wasn't luck though, the cars are incredibly cautious around people. Yes the car did the wrong thing here, but it wasn't driving at speed or endangering people.
> drove into a farmer's market
> wasn't...endangering people
There's a bit of a disconnect there.
Were you standing on top of the car at the time?
This exactly. The car didn't drive into people: it followed a vendor truck into a place it shouldn't have gone, apparently slowly exited the area.
It's bad, and obviously shouldn't have happened, but the car is cautious around people and didn't hit anyone. It's a far better failure mode than the typical case of a human who drives into a crowd.