Depending on the strength of the GPS signal, the camera may post GPS coordinates that slightly change with each post. If there are multiple customer locations within close proximity, the GPS post may fall into the geofence of a customer who is not associated with that container.
Navigate to the customer page and adjust the geofences of the service locations and the neighboring locations so that there is no overlap and as much space between the geofences as possible.
If you are looking to soft-lock a container to a location, please see the article on Locking a Container to a Service Location