I've never used Fedex pickup before, do they give you an acceptance scan? If they do, I might try that route. I prefer to have the receipt, but if not possible, at least an acceptance scan is an absolute must, whether it's with Fedex, USPS, or UPS. My friend once used the Fedex drop box. The package was never scanned by Fedex, and never made it to its destination. Consequently, Vestiaire refused to pay her, because there was no proof that she even dropped off the package. This is a scenario I've always tried to avoid.
I know it's scary out there, especially in winter times when covid cases, and deaths keep rising, but I'm very careful when leaving the house. Being as neurotic as I am, I go into Walgreens with a 3M N95 Niosh approved mask, and a full face shield, lol. I have a Walgreens practically around the corner, so it's pretty convenient for me. What I like is that there are no lines at all, and I can be in and out under a few minutes.