Here is the opinion in AUTO v. State of Washington:
Briefs here.
Here are the briefs in Automotive United Trades Organization v. State of Washington:
State Response to Policy Amicus
This case reached the Washington Supreme Court previously on a procedural issue, here.
Here is the majority:
And the dissent:
And links to all the briefs:
85661-3 – Automotive United Trades Organization v. State of Washington et al.
Hearing Date – 01/12/2012
Here.
Here is the news article, via Pechanga.
And the materials so far:
Wash SCT Accepting Direct Review
Lower court materials: