Ran out of batteries?

So, today traffic was horrible.  I know everyone always says they are stuck in traffic, but I really was.  I left the city just before 6pm and hit rush hour traffic.  I knew that it was going to be a long drive home so I filled up with gas in the morning.  The funniest thing happened, I ran out of batteries.  To be more specific, I drive a hybrid Honda Civic.  I love the car and it gets me almost 50 mpg.  It is a quick little car that drives more like a 6 cylinder than a 4 cylinder due to the electric motor that supplements the gas engine.  So today, I used so much battery sitting in traffic with the gas engine off, the battery ran all the way down to 0.  I didn't know this was possible, but today I can vouch that it is possible and probable if you drive during rush hour.  So, here I was, trying to do the speed limit in a car that I felt like I was pushing.  You don't realize how much the electric motor helps out until you don't have it.  In fact, I thought that I would never get up to 70mph, of course that wasn't until I was nearing Wisconsin, and almost home!!  Thank goodness the battery recharges itself and should be ready for the drive again tomorrow.