I seem to remember a thread (can't find it, though) describing an easy way to disable/defeat this cold shift delay. From what I understand, it is ONLY for an emissions reason, and disabling it would be of no detriment to the engine/tranny.
1994 C280, dark green metallic
1991 190E 2.6, Black
(sold to another forum member)
2003 Chevy Tahoe LT, Redfire Metallic
1989 Mustang GT Cobra Convertible