Uh, no. Discharging fire arms at or around a school is taken incredibly seriously pretty much universally. Doing something like this would be more than enough for hard jail time.

This happened at my school while I was in high school (late at night, and had nothing to do with school -- it was just a shooting that by pure chance happened to take place right next to the school -- neither of the people involved were from the community or even school aged). There was a huge police investigation and the shooter was caught within days of the shooting.

e: If you think "two kids exchanging fire in the parking lot" is an example of tolerated behavior at schools, you should take it as an indication that you have a wildly inaccurate mental model of what schools are like.