title_body: Is there anything I can do short of leaving a glass out on the counter to mitigate overcarbonation?
upvoted_answer: You can decant the beer between two large glasses or pitchers - the agitation will cause the CO2 to come out of solution quickly and also not raise the temperature too much. 
  
  Sample after 4-5 decants to see how much the carbonation has dropped, and repeat as necessary. You will end up with quite a bit of foam, hence the need for larger glasses or a pitcher.