Nope.
It's P0T 2G0
On the other hand, the PO probably delivers more marijuana (legal and otherwise) than any other shipper in the country.
Apparently, so I'm told.
The trick, as I understand it, is to double bag and vaccuum seal. The postal terminals are too noisy for sniffer dogs to concentrate.
But that's just what I've heard.
But I've been hearing it since 1966.