What you want to do is find a well ventilated area and use a little acetone to clean up the remnants of the covering. I mean a WELL VENTILATED area! Trust me. My IQ level dropped 25 points because the ventilation wasn't quite good....what was I talking about?

Go to the hardware store and get a can of acetone, dump a little on a rag and work the covering off. Looks much better than covering over covering.