I could see a legal-ish argument that Level 2 systems with a human accountable should do what the human instructs it to do, and that level 3+ systems with the machine and its creators accountable will strictly follow the law when it is able to.

But I could also see more practical safety arguments that when surrounded by traffic the autonomous vehicle should be able to at least match the speed of traffic in the slow lane, otherwise it creates a hazard. Then I’d look forward to the videos of people tricking the cat into driving 3x the speed limit through a school zone.