Hey at the time it sounded like fun. You know NASCAR drivers do it all the time. But into the "stunt" it got real scary quick. You are right !! It is a stupid & dumbass stunt. Back in my "wilder motorcycle riding days" I used to do it on a Victor 441 (remember that one - - just a big "1 lunger" w/a compression release) behind trucks on I-95 & NJ Turnpike. No problems just saved gas & didn't get blown around by the "big rigs". On the ped, man thats a different story, they are not made for speeds like that and you have a hard time breaking away from being "sucked along" by the truck.
I have a friend, also from the old days, who now lives in Baytown, TX and he says he does it every once in a while on I-10 his way to work. It must be a slow day at his business. But then again he races 50 cc Pocket Bikes for fun. (You've got to have a few screws loose to do that anyway) At the time I figured, what the heck, early Sat morning, nobody around, why not try w/a ped. The two guys in the dump truck still laugh about it w/their Harley buddies at the bar I work in part time. Maybe that is the reason the "inducted me into their club (i.e., gave me a MC tee shirt). Rich