So the sane option is to try to pop their wheels and cause an accident, especially with TONS of kids right behind the lead ones?
They may be at low speeds, but imagine if Officer Porky managed to take down one of the first kids before that big section came through. That kid would have then been a road hazard and likely taken out more kids, hurting both the first and subsequent kids in the accident.
It really is too bad Porky was able to walk away after he got hit. Wish he would have gotten the injuries he was trying to inflict on the kids.