I would try to get them as cold as possible , and then open the top to release the gas and reseal them do that a few times and you should remove allot of the co2.
or you could poor them into a big bole , wait for the foam to settle and drink the mess.
you should probably release some of that gas in them before they blow , depending on how much sugar you primed with , does the beer still taste sweet? if so i would act prompt.
o and try opening them with a towel covering them so u don't catch a swingtop in the eye.
over the tub or in a bucket exc , to catch any beer if your not quick enough if they blow the tops off...
or maybe try sanitizing your bottling bucket and catch all the beer in them and wait for it to settle then re bottle ... sounds messy but that's what i would try. good luck