This article describes an issue when trying to set up a visitor group with a geographic location and have setup the Google Api but seeing the 'Google Maps API Terms of Service' pop up when trying to use it.
The app key is setup as following:
<add key="googleMapsApiV3Url" value="https://maps.googleapis.com/maps/api/js?key=AIzaSyCkPtIlRi3rEqG1MDY"/>