What are the chances some non-trivial proportion of the millions of cars on the road will not have their LIDAR designed, built, installed or calibrated correctly? I suspect this is going to be a recognized public health issue in a decade or two. (It will likely be an issue well before that, but unrecognized...)

That's a lot of qualifiers. And replace "humans" with "cameras" and I'm reminded that despite their well-intentioned efforts Volvo has failed there already.