I dont know about this claim. I do wedding videos as part of my business and have done a Mormon wedding at the gorgeous Mormon temple in Columbus and the bride went in to the temple all dry and made up in a big dress and came out about 45 min or so later (we were not allowed in the temple, made my job easier) looking dry and untouched, just happy. Granted, i know very little of the Mormon faith but i call bullpatties on this story.
It was sarcasm.
Kind of a mishmash of bits and pieces of MORMON rituals performed in the Temples.
http://www.lifeaftermormonism.net/forum/topics/can-someone-please-explain