I have experience with removing "stuck" bolts using the method. With most threaded fasteners the male and female threaded components will have different coefficients of thermal expansion (contraction). By thermall shocking it you may free up a stuck fastener. I have had success on bolts by directing a fine stream of refrigerant at the bolt to cause it to contract while minimizing exposing the adjacent female threaded mass. I do not use any purpose designed refrigerant...I use a can of Dust-Off (compressed gas keyboard/electronics cleaner) INVERTED so the liquid phase sprays from the red straw tip provided. It will "burn" your skin with direct exposure for more than a couple of seconds and will do the same to your corneas even quicker so wear adequate eye protection. I have also used the same spray to freeze ID components while heating the OD components in a interference fit situation...such as insertion of bearings. You can buy it by the case for dirt at any office supply house.
BTW Parks...I think your name would be the ultimate stage name for a playboy soap opera character