not if its half a mile away, turn around, come back again, or a mile in a small circle around you, or if you have a car and go alongside them ... no ones ever said it had to be a mile going away from you in a straight line
When they say “next exit” don’t they really mean “this exit” ? Next exit would mean the one after this one. Unless you are not near anywhere near the exit; then the next exit would be correct.