W.A.
Hi,
I might be late in my response but just wanted to let you know, we once used the Fast Track lane,and we don't have Fast Track.
This is some time ago before they charge the carpool lane. Apparently there are different car pool hours in Bay Bridge and Dumbarton. When we used the Dumbarton Bridge at 6pm, car pool lane is already closed. We didn't realized until we were right in front of the toll. The next lane to the carpool lane was a Fast Track lane. We received a fine and we called to explain to them the situation and that it was too dangerous for us to try jumping a few lanes just to get to the cash lane. They told us to just pay the regular toll amount and include the explaination.