I don't know who would be enforcing this.
You don't get a permit to set up a window shaker so you are not going to see a code inspector.
I am guessing new ship window AC units are so supplied but anything manufactured before the drop dead date (the date the 2002 code was adopted in a jurisdiction) would be grandfathered in ... Or are you saying this requires all end users to throw away the unit?
Replacing the plug would void the existing listing.
I doubt a 100,000,000 ACs are going to get tossed.