Appreciate the feedback, everyone. After speaking with Gabriella over at PayPal, she recommends taking things up with USPS to find the package. Essentially, once delivered, I get the funds returned to me...now to just wait 30 more minutes on the wait line for USPS
I'll contact my buyer and let him know the steps I am taking in order to resolve this. I just get surprised when I receive no messaging from the buyer, stating he/she is unhappy!
NJ