Correct me if I am wrong here, but there would have to be a change in our Washington State Constitution
"Our legislative priority for the 2012 state legislative session is to prohibit the unconcealed, open carrying of loaded weapons."
Art.1 Sec 24 RIGHT TO BEAR ARMS. The right of the individual citizen to bear arms in defense of himself, or the state, shall not be impaired, but nothing in this section shall be construed as authorizing individuals or corporations to organize, maintain or employ an armed body of men.
Not to say anyone should turn a blind eye to it, though we need to keep having positive events and contacts.