Anti-theft Controller Problems of Buick Lacrosse

I was driving the 2010 Buick Lacrosse in rush hour on a very busy street in our town and while stopped an electrical malfunction occurred where all of the dash board lights and warning lights started flashing and the car would not move. I put it in park and then it would not come out of park and went into anti theft lock down. I made several attempts to turn off the car and restart it to try and reset of clear the issue and it remained locked down and not able to move. It was very strange how the key in the ignition was vibrating and buzzing at a high frequency and they would stop. After a few minutes the engine shut down. Now stuck in the middle of the busy road and cars nearly rear ending me and honking at me I thought I would be hit. My son was in the car and I had to wait for the light change to let him flee to safety. Worse yes the safety flashers would not work and the trunk would not open to signal a stalled car. I called on star and they were not helpful as I indicated it was an emergency and they sent a tow truck that arrived an hour later. The police showed up 20 minutes later to protect me and the car from accident. The police called a tow truck that arrived in 15 minutes. The car was towed to the dealer and they are being generally non responsive. I had this problem a few weeks before not in traffic and took into the dealer and they said there did not find an error code. This is a complete random failure and represents a serious safety issue.

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