A Meating on the Streets of Chicago

I knew this reunion would come sooner or later. I am standing just north of the Chicago River and I feel a bit like that silver-haired guy from “Mission Impossible.” My covert instructions arrived a day or so earlier via email. The note says: Meating Coordinates: 400 N. Michigan Avenue, just over the bridge. 4 p.m. sharp. Last one there is a vegetable. So, I get