How can I disable Google's offer to post personal photos for businesses?
Google Play Maps contains a bunch of activities. The activity that monitors when you take a picture is "com.google.android.apps.gmm.ugc.clientnotification.phototaken.PhotoTakenObserverService"

Look up on how to disable activities on rooted Android because I usually don't disable activities or look for a ROOT app that can perform that function. 

Disabling application activities requires ROOT access because your making modifications. 

Hope this helps! :)