A new automated traffic management system should help keep Kingston clear of idling ferry traffic, but it also means locals will have to get in line, too. The Washington Department of Transportation debuted its new automated system over the weekend. Riders have the whole month of May to get used to it before it goes live on June 1. Here’s how it works. When in operation — which will be from 8 a.m. to 8 p.m. every day from May to October and then…