"'Did you take note that the whole hour we’ve been here, not a single bike has gone down the lane, but thousands of cars are backed up?' asked Joshua Arce, an advisor for the California Alliance for Jobs. He and others blamed the [Richmond-San Rafael Bridge] bike path for this gridlock, characterizing it as wasted space."
That's the 2016 SF YIMBY-endorsed D9 supervisor candidate.
https://www.sfchronicle.com/bayarea/article/traffic-bridge-bicycle-lane-marin-20326160.php