On her visit to Mitzie and she went undercover as Superwoman she wore a red wig. Plus, as soon as he had him Superwoman showed up and he changed back into his uniform.
The dinner date was for appearances only.
Herb replied, “My boy, I never say … impossible.” "Lois and Clarks"
Plus, as soon as he had him Superwoman showed up and he changed back into his uniform. 
