If you are the admistrator, I believe there is a way to deactivate this feature, so if that is you, issue resolved.
If the parent is the admin, knowing Johnny is on a school bus, ditto.
They explained it at the 9-1-11 SHM but I do not remember the details.
This may help...
http://www.ipmetrics.net/teen-driving-rules-enforcement-nunchi-technologies.html