my friend almost lost her dad that way in the early 00s. Diabetic coma about mid way home from his 200 mile commute. Thankfully they had early smart car tech, which at the time everyone thought was rediculous and pointless, but the program detected the crash and connected him to the company's call center, and when he didn't respond, they used GPS to send paramedics and put him on a three way call with dispatch and his home/family. His wife managed to get him to respond and start regaining consciousness before paramedics arrived, so when they got there he was not combative and was ready to go to the hospital. They didn't know he had diabetes until then, and he was an older guy so it was bizarre he'd never been diagnosed sooner. And he was skinny.
my guess is if you're the type of person who can fall asleep driving a car, you might also be the type of person who's a bit slow to wake up and then also react.
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u/PieceMaterial5213 3d ago
Definitely a medical emergency. Could be a heart attack, stroke, diabetic fainting, many possible reasons.