From Townhall.com:
As the RSVPs in advance of the rally grew to over 6,000, the police – most who probably detest I-594 – decided not to enforce the law. The Washington State Patrol announced there would be no arrests for exchanging guns – not even for selling guns. Seim refused to obtain a permit to hold the rally, citing the right of people to peaceably assemble.
If you can choose when to enforce or not enforce laws then what is the point of having laws in the first place?