Cooked wine

[lindy]

Is a wine cooked when the cork starts to push out? I have about 9 nice bottles that were exposed to about 100 degree heat for about 1/2 an hour. I went and looked at them and 3 of the corks have poked out about 4 millimeters. Are these the wines in the worst shape? Other than this one fatal car ride the wines have been kept in pretty good conditions. (64 degrees and dark)

Thanks for all your responses!