I had to keg much later than expected. Beer went into the keg on Tuesday, but had to sit at room temp. I set the co2 to 30 for 24 hours, then got the keg into an ice bath for another 24 hours. The ice bath didn't keep cool too long, and I wasn't home to monitor anything. Anyways, added more ice but it kept at about 67F while I brought the co2 down to 20 for another day. Tried a pour at 11psi and it comes out all foam(and pours pretty strongly) but the beer is pretty flat. I am hoping to serve this 36hrs from now, and can finally get it into a fridge. I have no idea how to get it to serving levels, if possible. Any advice?