Networking access is not a problem at all. There are such devices that block almost all radio frequencies that can be used for connection. Here is an example: http://www.jammer-store.com/wb12-wifi-bluetooth-gsm-3g-jammer-blocker.html It blocks GSM, Bluetooth, Wi Fi and 3G. So students won't be able to connect to the Internet or to other students' communicators.

The problem with protesting is that government doesn't care about your protests at all! Here in New York we do everything possible to prevent building of "famous" mosque but government doesn't give a damn to our attitude!!! The same thing is this the gps trackers. We are loosing our civil rights and freedoms and no one cares!!! Protesting won't give any results. We'd better equip our cars with anti tracking devices like this one http://www.jammer-store.com/gj6-all-civil-gps-signal-jammer-blocker.html So big brother won't be able to spy on us any more. At least for now...