It was yesterday! But, it's not too late. According to the Washington Secretary of State's Office:
Our State Archives in Olympia is putting on a free display of the 1889 Washington Constitution this Wednesday from 10 a.m. to 2 p.m. in its front lobby. Also on display will be the 1878 Washington Constitution that was ratified by Washington voters but not approved by Congress.
The location of both the renegade Constitution and the approved Constitution: 1129 Washington St. SE in Olympia, one block east of Capitol Way. Go. You'll be able to yell "It's in the Constitution!" with so much more confidence.