OP: Am I understanding you to say that you were riding in the crosswalk? Otherwise why would a car blocking it bother you, except maybe on principle in solidarity with pedestrians.

LAB does a lot of education, notwithstanding that many cyclists don't know about it or bother to take advantage of it. They also do advocacy, and sponsor or promote such programs as Bicycle Friendly Communities, Bike to Work Month, and Safe Routes to School.

Some CM critics have reacted by forming their own rides, stressing obeying traffic law, using names like "Courteous Mass" or "Critical Manners".