Do you replace MIC-KEY buttons??

Hi fellow nurses!
I have a darling special needs child that routinely gets her MIC-Key button out at home. She recently succeeded in getting it out here at school even though she is a 1:1 with staff. My district does not have a policy or procedure for school nurses to reinsert the MIC-KEY, so when she got it out Mom had to come and put it back in. Mom had a hard time re-inserting because it was out for 30 mins. Mom says it has to go right back in or it becomes impossible and then its a trip to the ED or GI doc. So my question is this: Do any of you replace GT's? Do you have a written policy or just a MD order??? Mom wants me to replace if it gets pulled out again but I won't without sometype of policy. And yes, she is wearing a belly band type wrap and a neoprene sensory vest and she has 1:1 supervision so you would think she would never be able to pull it out but.....SHE DOES! Any feedback will be appreciated!