Was driving down the interstate on my way to work this morning in my Model S oblivious to all the ICE cars around me. At some point I noticed a car had pulled alongside and was not overtaking me even though I was going at a relaxed 55 mph in the slow lane. I glanced over, and see this guy in an Audi A4 holding up a red badge and waving it at me. At first I did not understand, but then I noticed the Tesla logo on the badge and realized that he likely was an employee probably on his way to the Tesla factory in Fremont. He had a big grin and the pride reflected in his face was obvious. I gave him a big thumbs-up which he promptly returned. I wish I had had the presence of mind to take a picture...