Technically a ruling has the "force of law" immediately after it's issuance.
Let's equate a statutory law, most states have an "in effect" date of 90 days, from passage, unless it is emergency legislation.
I doubt if there is anything in WA SC case law decisions that establish a bright line rule, nor would there be anything in the Rules of the WA SC.
For a decison such as this, let's apply the statutory rule as a guide. If it has been more then 3 months, they are basically in Contempt of Court.
An enforcement order needs to be applied for to Compel them to comply.

