I have a similar situation on my route; 1+ mile driveway, steep, rutted, almost impossible for me to get up there. The difference is that, unlike Gman's customer, my customer is reasonable. He built a large wooden box with a hinged door and a flag on it that sits at the bottom of the driveway and when he gets packages I just put them in there, shut the door, and hang the flag so he knows he got something. If it is signature required, I just leave a delivery notice on the box and send the package to will call so that he can drive to the center and pick it up himself. A while back he got some NDA meds and since (A)his phone # was on the package and (B) he is a reasonable customer, I went ahead and called him so that he could drive down to the bottom of the road and meet me. I also took the time to explain to him that calling was not something we were normally set up to do and that a relief driver might not even have a cell phone etc. so that he did not develop a sense of entitlement or expectation that we would call him for future deliveries. He understood and was quite grateful to get his meds and ever since then when his hens are laying he occasionally leaves a dozen fresh eggs in the box for me (or FedEx, whoever gets there first) to take home when I drop off a package.