Thousands of us who were there, parked at trolley stops and rode trolley to downtown. Trolleys were standing room only

I was part of that crowd.

2000-3000 of us gathered at Waterfront park,
then peacefully walked south on Harbor drive to Seaport village,
then returned north on pacific highway

There was another simultaneous assembly at Civic center plaza, a mile east.

This is what "Concept of a Plan" means