From NYTimes:
3 Arrested in Critical Mass Bike Ride
From NY1 (a bit longer):
3 Cyclists Arrested, 44 Ticketed Under New Riding Rules
One arrest was for disorderly conduct and another for obstructing government property. The third was not publicized.
Does anybody have a first-hand account? Also, were the summonses for violating the parade law or for other traffic infractions?