Mass Transit rider and a Rollerblader also beat the plane.
I guess that let-alone how much faster it was to get between the two places by bike-rollerblading-mass transit, the pollution issue is also major.
This Slate article has a pretty good take on the story. My fav quote:
[Cycling is] not only the cheapest form of transportation, not merely the one with the smallest carbon footprint, not only the one most beneficial to the health of its user, but the fastest.
This was also covered well in the Twitterverse. The search term is #flightvsbike, @wolfpackhustle was the cyclist group, @ohaijoe was on the plane, @thenightskate (actually @jennix) was the inline skater, @GaryRidesBikes took transit.
Metro Los Angeles offered free fares on 29 routes during the highway closure. Here's the transit rider's blog post.