K1 Mail to PO Box Question

[zic10 0]

I mailed out our K1 Packet to the Dallas Lockbox PO box. The packet was secured in a plastic / zip-top envelope enclosed inside of a USPS mail envelope. When paying for the postage, I requested a tracking number and that signature is needed when the package is delivered. However it dawned on me a few days later that this package is going to a PO box and I'm not sure if a person will be present to sign for this. The package was supposed to be delivered last Thursday, however I've been tracking the package and it appears to be sitting in the USPS post office in Dallas TX. The status of the package is, "Your item arrived at Dallax TX post office and is ready for pick up". Will anyone from USCIS actually go out there and pick up the package from the post office? Did I just screw up the whole process and ultimately have the package returned to me because no one will go out and claim it? Has anyone ever been in this situation and have advice on what to do or will things get sorted out and someone will pick up and sign for the package? This has me super stressed any advice would be greatly appreciated.

[RaLoveMG 43]

We went through this last week and now we got NOA1. Today is Saturday so no one there sign for it. Just give them some days more ...you will get it brother ??

[B-2-Z 37]

They go and they pick it up. When they pick it up, they sign for it. Don't stress! Make sure you hit "Return Receipt Electronic" via USPS when they deliver it, and they email you a time-stamped copy of the signature.