When it comes time, I would sanitize ALL my equipment, and use some sanitized device to poke a "hole" in that mess and rack out from under it. I had something like this on a Moktoberfest that I made and I racked from under it. It turned out to be one of my best beers ever...
BUT, ANYTHING that touches this batch should be cleaned with oxyclean, sanitized with a 1:10 bleach/water sanitizer, rinsed VERY well, and then use some Starsan or whatever it is that is your sanitizer of choice. If possible, I would also replace any plastic tubing and any plastic that is cheap to replace.