How you knew it was her? Is she an LV employee? I always wondered where she gets all these linited and new LV bags because I also live in Philadelphia and there's only 1 boutique close wich is KOP and a little one at Saks.
The seller probably got the bag at a consignment store. It's possible that the employee gave this bag as a gift to someone and then the person resold it.
In all companies employee are not suppose to buy to resell. If the person that receive the bag as a gift from the employee decide to resell it the employee is not responsible.