I'm freaking out a bit here. Trying to do a seasoning on my new 18.5" WSM and I read to cover the water bowl in foil and just let it run for a few hours. So I did that, went to run a few errands and came back to find that in just an hour I had to pry the lid off because it's melting! There are burn marks on the outside of the opening and the gauge on top appears to have the needly pointing straight down so I'm guessing it's over 450 inside. I could see black goo sticking to the bottom of the lid where I'm guessing the inside coating has melted. Have I ruined the smoker? It's still out there and I have no idea what to do.