Another possibility is that he had a nervous breakdown or substance abuse episode, leading to both the paranoid emails and the irrational vehicle operations.
Obviously I'm not saying that's the case, but the extremely irrational driving goes fits a theory of paranoid delusions (brought on by any number of mechanisms), just as the hacked car system goes with about to uncover something big.
Obviously I'm not saying that's the case, but the extremely irrational driving goes fits a theory of paranoid delusions (brought on by any number of mechanisms), just as the hacked car system goes with about to uncover something big.