I don't think I will trying this any time soon
"Maybe, just once, someone will call me 'sir' without adding, 'you're making a scene."
-Homer J. Simpson
I used to do this on the interstates with my VW, although never tried to catch the pulling wind behind a fuel truck. What is needed in this situation is a Yike Bike. (www.yikebike.com ) No need to leave it in the street for ladrones to steal, you fold it up and carry it with you like a (well, kind of large) umbrella.
Ojalá que (I certainly hope that) comes from the Moors and really means "Oh Allah that".