In the meantime, I have it sitting in my basement at home, which will hopefully bring it down a bit, then I plan on buying some ice tomorrow to let it chill.
Do you know what the ice pack is filled with? I think that there are certain things that can absorb more heat than just ice, which may or may not help with that predicament, however I do realize that nothing can replace letting the keg sit in a fridge to cool down.
Also, do you know for a fact that these will not fit on a sanke? If its just something that either zips up over the outside or slides up and over, wouldnt that be kind of universal aside from the slight difference in sanke and corny keg diameter? Either way, I wrote to the Kegworks company to ask them that, and hope to hear back soon.