The UPS store is a joke. It's not affiliated directly with UPS at all, they are a privately owned/run franchise location that uses the UPS name to bring in customers, and yes they do ship solely with UPS, but they are not UPS employees.
If there are any issues with something that went through a UPS store, UPS itself will be quick to point out that those are NOT UPS Employees.
Maybe most already know this, if not be forewarned.