August 1: Helpful Motorcyclists

I'm driving my roommate to the airport; we're on the highway. I see a pair of motorcyclists in the rightmost lane approaching a few huge chunks of splintered 2 x 4's, blocking the lane. Instead of zooming around them (like all the cars are doing), they slow down and stop. They get off their bikes and start moving the chunks of wood off the road together, while cars zoomed around them.