Is the USPS responsible?

The USPS attempted to deliver a package to my house on 12-22 since I was not home they left a notice stating that it would be available for pickup on 12-24 after 9am and that it required a signature. I went to the post office on 12-26 to pick up the package but it wasn't there. I have come to find out that they delivered it on Sunday and left it on my doorstep where it was stolen. Is the post office responsible for replacing the contents since they did not abide by what the notice said?