If you gathered up every single one of these edge cases and multiplied them by 10 you wouldn't get anywhere near the actually-existing, non-hypothetical, measur

If you gathered up every single one of these edge cases and multiplied them by 10 you wouldn't get anywhere near the actually-existing, non-hypothetical, measurable problem of speeding. So, sure, we should talk about edge cases and people who implement this technology should work on them, but even if they didn't, the tech would still be a good idea given fairly pedestrian calculations of the relevant tradeoffs. And even if we accept your premise that the edge cases are a big deal, the solution presents itself quite readily: let there be an override with serious consequences for frivolously engaging it. Simple.