https://www.kcra.com/article/protesters-shut-down-bay-bridge-heading-san-francisco/45862462#
There should be a way to protest without shutting down the entire bridge deck.
https://www.sfgate.com/bayarea/article/protesters-block-bay-bridge-18496142.php
https://www.sfgate.com/bayarea/article/protesters-block-bay-bridge-18496142.php
Whether its a protest, or it's a fire, any major highway can be abruptly shut down, unfortunately.
https://www.sfgate.com/bayarea/article/i-10-closure-california-state-of-emergency-18486449.php