Used to be a warehouse manager.

Its odd that they won't let you pick it up. I know for a fact that they work on Saturdays. If I were you and if its a short drive, I'd just show up with the tracking number and make (polite) noise until someone helps you.

Anyway, in the shipping biz people liked to say "There's a reason they call them 'ups'"

More mistakes than fedex by far (USPS doesn't count, because no one in their right mind who does a lot of high-value shipping uses them except to go to APOs,)

Once lost $23,000 in inventory in the UPS system...poof, gone. Where is it? No idea, sorry. We'll refund you. In the meantime we had some pissed off customers and a lot of hard-to-get parts on backorder.