When I used to Survey along busy highways people would come to a stop next to me, in the travel lane, and ask directions. The first few times it happened, I explained to them they need to pull off the highway so someone won't take them(and me) out. The last few years I would tell them "GET THE F#*K OUT OF HERE!" Worked every time! People are F'n clueless...I like the ones now who think they are doing the right thing by pulling out of the travel lane to make a call...and stopping in the middle of the turning lane.