I am just curious. This is the 2nd time this has happened and tonite we just had a major structure fire again a few blocks down. I am wondering if it is because they used so much water to try and put out the fire?Thoughts?
possibly you are able to spray it with water or cleansing soap water, allow it soak to loosen it then intently wipe it off. If that doens't loosen it attempt WD-40 and allow it soak, it is going to no longer harm the paint yet fresh the oil off at a similar time as your accomplished. do no longer attempt wiping it at a similar time as its dry.
There were probably still bits of the foil wrapper on it, since you said it started melting in the truck. Some of the foil wrapper probably molded into the bar, so when you heated it up, it caused a spark and flame.
Maybe you could use some of the new LED strings. They are a little more expensive but they last longer and don't produce as much heat as the regular ones. My wife has done something similar for Christmas, behind a small X-mas village she used a string light and a dark cloth over it. Just be sure the lights don't produce a lot of heat. Of course you should have a smoke detector in the room no matter what you do.
