If you are looking for a specific person, it would be easier to use a name index for the 1940 census online in a number of places including the FamilySearch.org search tools. But if you want to see the 1940 Wayne County census sheets: https://www.familysearch.org/search/catalog/2057762?availability=Family%20History%20Library registration required, but it's free. There were 2,015,623 people in Wayne County in 1940. If you can't find them by name, and have an address in an urban area, then there are street indexes online as well for 1940. If you want more information do a followup here.
