Steve McQueen, a bike, and saddlebags? WTH?

from the wonderful website http://ridesabike.tumblr.com/

a City of Los Angeles bus, very early 10 door example... anyone know what it's story is? Los Angeles is on the front window

click on it for full size

looks 1920's to me. Wood rims, 2 spare tires due to horse shoe nails being common problems

Why do car companies go through any trouble to attempt to disguise a car, and then drive it on the 405, at 1 in the afternoon on a Saturday?

I think a couple minutes with searching through the 2013 models would reveal what car company made this, just with a couple little things that they aren't disguising. The door handle design, the truck lid to bumper profile, the gas filler door location, the rim design, etc etc. So why drive it in public in LA, with Michigan plates if it isn't trying to stand out like a ugly goosling among ducks?