So, as an update to this, I found something that worked, without removing the finish or scratching my test strip. Took about 10 minutes total, including the time waiting for the cleaner to soak into the paint, to remove a 1/2" wide strip of paint about 6 inches long.
I used a product from home depot called Simple Green (***This alone didnt remove it all***). I coated the paint in it, then let it soak for about two minutes. Two swipes and most of the paint was gone. I re-did it again, and all the paint was off, however, a light blue hazey stain was left. I tried a few more attempts, but the simple green did not take away the haze at all. I then switch back to the paint remover I have (dipped the end of my lint free cloth into a small cup of remover) and while it doesn't cut through the thick paint, it took the haze away it 30 seconds of wiping. The scrap piece of plastic is now as white and shiny as the rest of my plastic.
Off to try it on the actual helmet now.
*** Always test on scrap pieces first ***