Scheduled "Terminal Runs" leave Edgewood on the hour and half hour. Someone please correct me if I have that wrong, I don't use the service often. Point being, if you arrive out front at :20 past, you may have a longer wait. Call them, so they know someone is waiting.
Also keep your company ID accessible. Employee-only so some van drivers will want to see it, especially if you aren't sporting the brown polyester.
Good Luck and welcome aboard !
Ray, SDF is the center of the universe at UPS airlines.