Fun scenario to get this going: A man standing in Pioneer Courthouse square in Portland. He is drinking a coffee from the Starbucks, enjoying a fleeting period of sunshine, and is in no way acting strange. On his person is a valid CHL and a concealed full-auto subgun (Uzi, MP-5, etc...) with valid form 4. Is he legal? Provide quoted portions of applicable codes, statutes, and case law to back up your claim.