USPS stuck on Depart USPS Sort Facility For Two Days?

My package has been stuck on Depart USPS Sort Facility for nearly 3 days now, two for sure. The sort facility is a mere 40 minute drive from there to my home. What is going on here? I called my post office, where I receive my mail due to mailbox bashing children, and they do not have it and do not know where it is, save Hazelwood (the sort facility) still. Yes, we received around 8 inches of snow, but this was before the package got to Hazelwood, so I KNOW snow isn't the issue. Also, I am receiving my other mail just fine, such as TV Guide and bills (sadly).

It has been delivered to a similarly close post office before, but they always scan it to let me know what happened and that they are sending it to it's intended destination. I called THAT post office as well, just in case, and they did not receive it either.

Yes, this is a very important package. I have been using them for 2 years now. I get my medications mailed to me from CVS pharmacy, which is the only pharmacy my insurance will allow for my medications, and the nearest one is over an hour away, so I REALLY DO need this package. I am not allowed to pick up my medications at the pharmacy either, so I am told.

So what the hell is going on with my package? Is it lost? Stuck? Will I ever get my package? Any USPS employees or people that have been in silmilar situations know what is going on? Is it REALLY because of the MELTED snow that fell four days ago, BEFORE the package reached the sort facility?

Tracking number in case there are any kind USPS workers able to look into this: 9405511899560138392671