It will not. I guarantee it. The vehicle emissions worming into the bare concrete are acidic. The water from rain and from the humid air slowly degrades it. The salt air doesn't help. At some point, sooner than you think, the corrosion will reach the rebars inside the concrete.

All this could be prevented with sacrificial applications of stucco, but brutalist architects insist on keeping the concrete bare. It takes a lot of work to keep a building like that from crumbling under these conditions, and city hall is not loved enough to get the work done.