This isn't the lobby of the state capital we're talking about here, it's a small 5th floor office in a (private) 17th Street office building.  There are many tenants that share the same building, same floor, same hallways.  It's NOT a public space, no matter who's leasing the office.  It's a private commercial building, and tenants are bound by lease conditions that ensure a reasonable use and behavior for all the tenants on the floor, and in the building.

Surely you can see that.