Speaking from experience...making a complaint with the Postmaster at the Lady Lake post office will go absolutely nowhere. You will be forgotten/ignored/dismissed quicker than an exhaled breath. If you have a legitimate complaint about mail service, you need to file an online complaint with USPS. You should also document everything. Online complaints go over the head of the local Postmaster, and do get looked into. Your issue may or may not be resolved to your satisfaction, but those complaints do get tied to the Postmaster and his/her contract employees. I certainly agree the "system" we have here in The Villages is not ideal.

The MyQ system definitely does work with the Linear garage door operators. I have successfully installed MyQ on my Linear door, and those of several friends, and it works perfectly.

Sometimes Amazon uses USPS for the final delivery, I try not to us USPS for the reasons above, happened to me many times. The last time , a nice lady came to my house with my package, said it was in her mail box....

One way to avoid USPS with Amazon is to use Prime and to only buy items that have a one or two day delivery time. I will even pay more for an item if it has a shorter delivery time.

Usps
 

I have had sporadic problems with USPS in forwarding my mail here. They often returned it to sender. I have issued a complaint to the Postmaster General in Washington twice. He contacted the PO back home telling them to correct the issue. So sending a complaint may help

Postmaster General

If you're tracking the package, you can select a pickup from post office .