Stop Package from being delivered

I was late on getting a package out because I temporarily wasn’t able to get to the item. I had already printed the label and yesterday, I mailed it. Buyer then emails me asking for a replacement but I informed her I had just sent it and apologized for the tardiness. Obviously she wanted it still, even if late based on her request for a replacement, not a refund.

​

Then today, she files an A-to-Z, already granted without me even getting a chance to respond.

​

This was sent by USPS and is scheduled for delivery Aug 19. What are the chances of having them intercept the delivery? It is going to rural Maine.