D.C. has a bike sharing program but I think they require the bike rental company to make sure there are always bikes available at all bike stations. I saw a guy restocking the bike racks and he explained it was part of the deal with the city in order to be allowed to operate.
The Service level agreement is having one spot or one bike at a station 90% of the time, among other metrics they look at. They also have a dashboard [1] that shows aggregate metrics for the DC system monthly.