This could backfire on them
All it takes is one child killed or crippled by an autonomous car driving around with a human behind the wheel (or without a wheel) and they'll set back the cause of autonomous cars by a decade.
Stupid states are competing to see who can have the most lax regulations to encourage development of the technology in their state, but only a foolish governor would call the software "foolproof" at this point! Hell, I'm not sure I'd consider any software "foolproof"...