If I don't know them, I don't trust them. People pretend to be having car trouble but they are just trying to lure you in. Also, most people have cell phones they can use to call for help. Plus, I don't know how to work on cars so what good what I be?
so how much time do u really save by flying is the real answer. Get there an hour or so early, wait in the terminal, flight delayed , rent a car or Uber around not worth it on trips under 8 hours.