I use to have a little Nissan Sentra and unfortunately, three other people in the Missoula area decided to purchase the same car. Two of them were the same color, and the third was somewhat darker, but close enough that I couldn't tell the difference between their vehicle and my own in the dark. I can't tell you how many time I got in the wrong car before noticing a car seat, or a soda can that didn't belong to me.  I had to start hanging stuff off my rear view mirror so I had a quick check option. Even with my chances of car confusion, I never had this happen to me. I hate scraping snow and ice off my car, so if I was in this guy's snow boots, I would have thrown a fit to rival any two year old!