Oh right! I can just see the trick becoming widespread and lines of 47 vehicles appearing at a police station..*grin*

My personal scary story: I was sent by an employer around the beltway to pick up some sheets of specially cut glass for a project. I drove a VW van, and the glass was packed carefully and flat on the rear deck.. above the engine.
On the way home, it began to rain, and became moderately heavy. The beltway was 4 lanes wide, and I was in the 2nd lane from the shoulder, lights on as required. Speed limit was 55MPH, but even that seemed excessive with the amount of traffic and the rain. Up behind me came a semi...(truck with 40 ft, trailer)... he evidently did not approve of my speed (right near the 55 limit) and came up close to me and flashed his lights. With the gloom & spray I simply could not see to change lanes safely, and cars were fairly close in all lanes. Because he was so close, it was even harder to see past HIM in either mirror! He would back off a bit, then speed up, trying to bully me into getting out of his way. I tried slowing gradually, hoping he would pass, but then he blew his horn!
After a very tense several minutes I was coming to my exit and HAD to move to the right, so I sped up to what was NOT a safe speed, and found one small space to get over.
   Typing this does NOT convey the sheer panic I had, wondering what he was capable of.