Car died and key won't release
 

I just fired my car up from a having driven about 5 minutes for an errand. I received a "Service Traction Control" message, "Reduced Engine Power" message, and some grinding sounds. I pulled over and turned the car off. Looked under the hood and there was not anything obvious. I attempted to start via the remote start while in the car. Sounds weird, but that's what I did. Dash flashed the engine light and didn't start. I put the key in to start it. Nothing, except I also could not get the key back out. The car had no power.

After about 10 minutes, the power came back and the key released.

2007 Monte LT.

Any suggestions?

Thanks.