Tracking USPS Signature Delivery mail- WTF???

I bought some heavy stuff at the bf sale, a custom assembly so I didn't really know what to expect. Got a notice from FedEx a day before scheduled delivery, (a couple weeks sooner than I expected) that it was coming, and needed i.d. and a sig.
Guess what. Perfect arrival exactly when predicted, FedEx guy unloaded carefully, packaging intact. I was shocked, and pleased.
Now for USPS. Since none of the f@#king banks will cash an I-bond any more, I have to send them to the government, open an account (which I'm sure is VERY deliberate) and trust them to the mails. I'm gonna insure them for TWICE what they are worth, and require a signature and proof of delivery. And hope they don't get sent to Hawaii or Puerto Rico.