Nobody has developed that yet and OP might not have the skills to do so, but if an easy-to-install github repo were available then the lowered barrier to entry

Nobody has developed that yet and OP might not have the skills to do so, but if an easy-to-install github repo were available then the lowered barrier to entry might make it possible. Theoretically, Teslas already know how fast every car around them is going and how they are driving, as evidenced by the 3D "FSD visualization", but I am guessing that piping this information out to rat out the reckless drivers is going to be super hard.