How to disarm the anti-theft device in car. Stuck 40 minutes in traffic waiting?

What is your question?

The car shut down completely. Could not move key at all. All lights went out and the anti-theft light blinked several times. It was about a minute after I started the car and started driving. I could not begin to even tell you how scary this is. Especially since I am crossing railroads all the time. 2008 Chevy HHR