At the firehouse we get packages from UPS fairly regularly... and we hate them. Even if we're at the station they'll just leave the packages outside of the back door, signature required or not. They just don't seem to care.
FedEx always makes sure we get our packages, and won't leave them without a signature. They'll actually go out of their way 3-4 times a day if they don't get us the first couple times because they know many of our packages are time sensitive (AED pads, gloves, things like that).
life IS good.