My building in the suburbs outside of DC had the same requirement put on them by the county. They weren't allowed to build enough parking to accommodate a full building in order to encourage people to use alternative transportation.

This is something of a problem because one of the features of the building is a large conference center where we can hold events. Luckily the older buildings on campus all over overbuilt parking so it's not a completely unworkable issue, but it does mean people who come for the conference need to walk over from the neighboring building.

I actually use the relatively convenient metro stop most days, but sometimes I have to drive and it is always a crapshoot if the underground parking will be full. The funny thing is my building is in one of the least walkable suburbs in the world. The suburb was completely built around cars and plans to make it even a little walkable are at least a decade way from completion (have not even started yet).