Make the encrypted data a bunch of information on jury nullification while you're at it.
These people shouldn't be employed as janitors, let alone school administrators.
We don't actually know for sure whether the school did anything wrong.
We're pretty sure they did, if we take at face value the statements of the district administrators.
Assuming the only activations were in the case of laptops being misplaced or stolen. as claimed publicly by the District, by pursuing it themselves rather than turning it over to the police department, they were acting as private investigators.
Pennsylvania, like most states, requires licenses for PIs. I strongly doubt the persons activating the cameras were so licensed.
That's the most generous reading of events I can come up with at this point.
"The number of Unix installations has grown to 10, with more expected." -- The Unix Programmer's Manual, 2nd Edition, June, 1972