In N.Y. I think it would be safer for the community if the cops went around checking diplomatic crates, boxes, and pouches, not to mention diplomats. (dogs from the U.N.)
UN diplomats openly disrespect NYC cops, and are not above spitting at them.
The NYC cops hate and loathe the UN guys and the department almost always goes against its rank and file.
That said, realize this is the same city that will fine you for sitting on a milk crate (not joking, its happened this year).