Hello, I was outside (not a garage, just an outside parking lot) with my car on and my trunk open to dispose some trash out of my car. The car was turned on with heat on and I saw exhaust coming out of my car. I was disposing some trash for 15 minutes and I was right back of my car. I felt a bit weird - and am very worried about carbon monoxide poisoning. Do you think that could happen or am I overthinking?