How to sneak my iPhone 5S to school?

Okay so my school doesn't allow us to bring phones but I need mine because I'm about to start having these dumb after school activities so I have to stay at school until like around 5pm or later, it all depends. But I'm not 16 yet so I can't drive legally so I'm going to have to call my parents to come pick me up, and I honestly hate using the school phone at the office because it's confusing to operate and I usually have to have someone come work it for me because you have to type all these numbers before dialing the number youre calling. But since it's after school the office doors will be locked up. My school also does checks for things like that and they have those little stick/wand metal detectors and they make you take your shoes off and they check the backpacks and i don't know what to do. (I live too far away from my school for my parents to come drop my phone off so they won't do it)

If you expect that a cell phone is easier to operate than a old fashioned desk phone you had better learn to exaggerate much better before you tell tall tales.

I doubt you are the only teen without a phone in your school, just have your parents pick you up at a set time. After School activities don't just end at random times. Sorry.

Sounds like a good way to lose your iphone.