well I was one- my DD graduated from a Univ. with several thousand on campus (5000 at the time she attended and now it's 6+thousand) and the answer is exactly the same- NO WAY
many "children" enter college at a pre 18 age with several thousand students and do just fine, the driving age in my state is 16 and I didn't need my child chipped to enter cities of several thousands at that age and she also did not have a cell phone at that time either----it's called trust and taking responsibility in our case
we did not have to deal with it for pre-college level
even given the scenario you stated, (but the office didn't have a clue where she was or any way to figure it out.) - there is no way to know what is being suggested would even work given the off campus location and the tracking device- and with most "lock downs" fire, etc you would also need to have off campus monitoring to ensure the system would be accessible in the event no one could get in or get out of the facility with the info
I personally see an over reach here. I see massive room for mismanagement. I see numerous ways to evade the system and in the end---so what? If you child doesn't register be it by a electronic chip bottom line or the old fashion way of simply checking ......you have a problem and a chip doesn't solve it, it just makes you feel good but you still would have a child that would skip out of where they are. What are you going do- call the police (who in most cases may not have access to a private system like this one) so they can hunt down and taze the chipped student off campus? or let the parent know and what wait until the parent comes and what....? still think that a student who doesn't want to be found is really going to care.
I don't see that this is anything but a feel-good approach that just serves to lessons responsibility.
ETA - I can see this as a challenge to it's constitutionality and I can see it failing. Yea Anonymous!!