Perfect. So now instead of keeping drunk drivers off the road, you will have kids refusing to pick up their friends, because they will be punished as well.
It seems they would rather have someone die.
More likely you just have a bunch of cowardly petty tyrants in the school. Ones who use “zero tolerance” as an excuse to excercise punative, vindictive authority without the requisite responsibility for the decision.
Also, you probably have some tyrants walking in the darkness of their own wickedness that hate light bearers like this girl and were looking for a way to take her down a notch.