Back around 1985 I remember reading a short story, I think it was in Omni Magazine, of a post-apocalyptic world where something unexpected happens. The story begins during a storm over an ancient factory. A lightning strike hits the factory, which, with its advanced power systems, channels the electrical surge into its grid and activates the assembly line which produces three robots, a Mickey Mouse, a Donald Duck, and a Goofy robot. The power then being used up, the factory again shuts completely down.
Suddenly the three activated AI characters are alive in a desolate world where they cannot find any vestige of humanity. As the characters begin to explore the world around them, they manage to get in touch with a military satellite whose orbit is about to degrade completely. Before it degrades, however, it relays to them the location of some remaining humans. After a long, hard journey, they find the humans and while one of the characters gets damaged beyond repair and cannot go on, the other two are determined to help restore civilization to humanity.
Anyone know the name and author of this story?