Service traction control, Stabiltrack, "turn off A/C, engine too hot"

I have a 2008 Saturn Outlook with 40k miles. I live in Texas where the heat has been unbearable this summer. A few days ago, it was 108 degrees and I left my car running with the A/C on for about 5 minutes while I put some groceries in my house. When I tried to leave again, the traction control message came on and my a/c light was blinking. I turned off the a/c for a few minutes and everything seemed OK. 10 mins later I was stopped at the ball fields while my son was climbing in the car. (no more than a 2 minute process). The car lost power, the traction control light came on, as did the stabiltrack and the "change oil now" message. I am at least 2k miles from needing an oil change. Today while driving on the highway, I started to lose power and "Turn off A/C, Engine too hot" message came on. What is up?! I have read about the camshaft issues, but no one seemed to mention about the car nearly over-heating. Any thoughts??