After doing Judy I couldn't leave a Hot M.I.L.K. like Jan out of the fun.
(M.I.L.K.= Mothers I would Like to Kidnap)
After Mr. Spacely hears about the missing plans is uses his own industrial spy to entice George to help him get them back.
(P.S. for the record while Spacely and Cogwell are ruthless business men and would Gladly destroy each other. They aren't the kinda guy who tie girls to train tracks or leave them next to bombs. )