Yes, needed a signature to be delivered. No it won't get sent back. You will just have to go to your local UPS store to pick it up likely.
As others have said, if it wasn't super cheap it probably wouldn't be worth it. Seems decent quality though and I could see me using it when I don't also want to carry a wallet. Since I have the really thin original Moto Z it doesn't fit super awesome, but hopefully will fit the Moto Z3 better when I get one of those.