The whole "ride your bike to work" thing went swimmingly for my boss and I. Until we realized that we were hungry for lunch and no one really wanted to go out to get food. In fact, when talking to one vendor who asked if my boss had ridden his bike (meaning motorcycle) to work given the beautiful weather, he responded, "No, it's dumbass ride your bike to work day, so I rode my bike-bike."
That pretty much sums up how we were both feeling. Apparently we both prefer being environmentally friendly in theory vs. in practice. It was about this point that the boss (who lives closer) decided that he would ride home at lunch, get his car, and thus be able to run errands after work. A brilliant idea that I only wish I could take credit for. Instead I just copied him.
And so I now have my car. To run errands. And I can't decide whether or not I cheated. Because technically I DID ride my bike to and from work today. I just, you know, drove my car too.