It would seem from newspaper ads during 1977-79 that Chocodiles were available throughout a large segment of the country, although not everywhere. Here is a map showing in color the states where these newspaper ads ran--the darker the color, the greater number of reference points.
This is somewhat at odds with google research that makes anecdotal statements that Chocodiles were largely a West Coast product.
Newspapers.com did not show any reference to these snacks in 1975 or 1976, and the packaging shown in the 1977 ads refers to Chocodiles as "new", so it's likely that there will be no Hostess-related baseball cards found from this product until at least 1977.
Hope that helps.