“What? I can buy a car that will drive me home from the pub when I’m sh*tfaced and I won’t get arrested? No more orange juice. Sign me up. It’s only 99% safe you say? Still sign me up.”
Human nature.
99% safe is still better than most human drivers, though. In the end, that is what matters. The odd hacker attack every now and then might be something that people are willing to accept in exchange for an overall reduction of accidents, drunk drivers and traffic jams.