I actually found this because my photograph of the Mayor is used in the piece ( thank you! ). It directly relates to this recent post about the visualization of Capital Bikeshare data (see: “Quantified Community“).
I think the art piece in the blog post referred to above settles the question visually about whether Capital Bikeshare is being used by commuters or not. Another great use of art + open data to help people and communities make the best decisions.