Figure out another way

You head over to the maintenance closet and make sure nobody's following you before you enter, you notice plenty of outfits you could get away with wearing but most of them are old and beaten. Most of them except a pair of overalls and a pizza delivery uniform. You could chance wearing one of them and posing as a worker but you turn around and notice a huge crowd of girls walking towards the house, another option would be to try sneaking in by surrounding yourself in the group.

Dress as the maintenance man

Dress as a pizza delivery guy

Blend in with the crowd of girls