Baja engine Surge

[darthsoob]

In my 2005 Baja Turbo Automatic; i was stopped waiting to turn into traffic from a parking lot, my foot on the brake when the engine surged from 800 to somewhere around 6,000 rpm. did not see any idiot lights come on, so I tried to put in in neutral, the rpm went down very briefly but shot right back up. I then had the presence of mind to shut off the engine, waiting a few seconds and restarted. Car ran just fine then. Good thing I had my foot on the brake when it surged. Has anyone else had this happen to them? Anyone hear of a cause?
Thanks.