Guy in the parking lot

The other day I went to work a little early to get to a meeting. I was slightly in a daze so it took me a moment to register that it was a little unusual to see a buff dude with no shirt on in the parking lot. It looked like he was picking out what shirt to wear that day. My only thought was to look away as soon as possible so he wouldn't think I was staring.
Did he drive to work shirtless? Who gets dressed in the parking lot?
It's a good thing I usually arrive later.