People tend to check in during these times:
Look closely at the plaque if you're ever walking by. A young Alameda County DA named Earl Warren had his name emblazoned for all time there in 1928
THIS IS THE SAME TUNNEL IN THE MATRIX MOVIE!
Watch for motorcycles!
You hear of more bridges collapsing in an earthquake than a tunnel.
Can you hold your breath threw the whole tunnel? Better hope the traffic doesn't collect at the bottom.
Mega traffic!! Stay to the left...
Honk the horn!!!
Please don't slow down ... I'm afraid to be underwater in an earthquake