I wonder if it was intentional, or he just got a little lower in the ditch than he meant to. As much experience as those guys have, I'm going with intended though.
I find it's still great fun to run a 'pace' through the Gap (and on the street in general), but I think the look of concentration is due to 1) not fixating on some dude poking up out of the ditch pointing a camera at me

and 2) wondering if there's going to be some squid blowing the double-yellow & coming at me in my lane
again.
I sure miss the weekends up there in the mid-late '90s when it was a relative ghost-town!