A driverless car in San Francisco drove right into wet concrete and got stuck after seemingly mistaking it for a regular road: 'It ain't got a brain' / The site had been marked off with constructio...

A driverless car in San Francisco drove right into wet concrete and got stuck after seemingly mistaking it for a regular road: 'It ain't got a brain' / The site had been marked off with constructio...::The site had been marked off with construction cones and workers stood with flags at each end of the block, according to city officials.