The US NHTSA has scalped Comma, a startup aiming to provide retrofit ADAS and semi-autonomous capabilities to vehicles for around $1,000. Not that it was a particularly bloody fight, as founder George Hotz has pulled the plug on a planned launch following an inquiry by the US regulator. If there’s one area of the IoT that does definitely require government regulation, it is definitely autonomous vehicles. However, Hotz’s Twitter tone reads somewhat like a tantrum, given that the letter from the NHTSA isn’t particularly confrontational – aside from the potential penalty of $21,000 per day if no response is given to its questions about installation and operation. The inquiry boils down to asking Comma to ensure that the product is…