Jim Stewart wrote:

Bicyclists riding 2 abreast, one outside
the defined bicycle lane and blocking traffic.

You may want to check it isn't actually legal.
In Oz, basically cyclist can ride 2 side by side and a 3rd can legally
overtake them.

Of course, we don't have many bicycle lanes, although they do mark a lot
of parking space with a bicycle logo, but usually just means that the
lane marking was paid for out of government bicycle funding.