It's ok, even as a native speaker I had to think through this same thing. I have come to the conclusion it is talking about "all the other drivers on the highway".
Be sure to follow the rule before you head out.
Rule: You must post before you leave.
^other^ ^rules^
It's ok, even as a native speaker I had to think through this same thing. I have come to the conclusion it is talking about "all the other drivers on the highway".