And my daughters school is 1/3 mile walk - you can BET, if TSHTF, I _WILL_ be picking her up (probably on foot), lockdown or not. You REALLY think they will keep me from my child? THEY might THINK so, but they won't (Breaching team - front and center)

That said - they actually DO have a procedure to pick up you child during lockdown (Breaching team - dismissed) - you go to the guard (yes, the school has a guard) show your ID, go to the office, they check against your childs "People allowed to sign this child out list", send you to your child, and then you are allowed to leave