possible immobilizer system activation/malfunction

I drove my 2008 MS3 GT to an AutoX event with Cobb AP installed. I reflashed the ECU with a custom map that morning for the event.

Then I drove the car the MCD to grab some breakfast. After breakfast started the engine and drove to Gateway International Raceway.

After I arrived at the track, I parked the car and I began setting up for the event. I tried starting the car to get a Tech inspection and it wouldn't start.

This weird car with a key flashing light came up so I looked it up in the manual. Found out that it could be a immobilizer malfunction/activation.

I then looked it up online in other forums and other owner used the spare key and was able to start it up.

What I tried to do:

1) I unplugged the battery to reset the ECU: didn't work.
2) Tried to use Accessport to read any code: AP said cannot find/locate ECU check cable...
3) Had a buddy give me a ride back to my place to grab my spare key to use it to start: didn't work

Anyone had the same experience?
What should I do next?
 

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