In theory you can can pop every cap to reduce the CO2 in every bottle. You may need to do this several times over a period of time. Or do nothing and when you pour a beer, wait ten or so minutes before you drink. If you went over by extreme amounts of carbonation. You may have bttle bombs. Watch out for them.
Way late to the dance on this one, but just in case someone is searching for an answer in the future, if you refrigerate the bottles that should stop the carbonation process in its tracks. Not that I would have any first hand knowledge of over carbonated bottle bombs. :)