I just read the agreement, it says 'CUSTOMER HEREIN AGREES THAT THE TOTAL AMOUNT OF LIABILITY OF THE CENTER AND MBE, IF ANY, FOR ANY AND ALL CLAIMS ARISING OUT OF OR RELATED TO THIS AGREEMENT OR PERFORMANCE HEREUNDER SHALL NOT EXCEED $100.00 REGARDLESS OF THE NATURE OF THE CLAIM'.*
OK, so it seems like no one is responsible and I should forget about my $7k, right?
Consider it when renting a mailbox, lol
* CENTER AND MBE means UPS Store
I would suggest contesting that, in court, if necessary. It would be unconsionable for them to be able to remove liability for actions such as gross negligence or theft. The law tends to not like unconsionable contracts.
Basically, that contract would allow somebody at the store to steal every package that ever came into the place and owe each claim only $100. That is unreasonable.
If it were me, I would argue the contact would only be enforceable upon mistake, error, or simple negligence (something such as: whoops, we dropped your package and broke it).
If they refuse to compensate you, I would get right back with the police and push them to move this along for the criminal actions involved. Depending on how the store handled it, they may not be able to escape criminal liability for the events. Unless they can show somebody broke into the store and stole your packages and if access to the packages was otherwise limited, the thief becomes easier to identify.
I would also contact the offices of UPS that deal with their franchisees. Something like this gives them a bad reputation. I don't know if they will do anything about it to help you but it could result in the franchisee being penalized in some way.