Just like Imacdog, after 10PM I've landed at several airports where one guy did it all from tower postion. I think if you should have been on the tower freq, app would not have told you call gnd clearing the runway. That would have been the time they would have said call the tower on the phone when you get in if you had been at fault.
One story.........
We were doing an ILS to a small towered airport one afternoon and APP, located at another Airport, was lazy and wouldn't give us vectors to the loc, we were cleared for the full app, I ask for vectors and he said naw.....I think the game must of been on or something, but turning inbound APP told us to contact the tower. Previously I had called the FBO on unicom to give them a heads up for a quick turn. After several calls to tower with no response I called APP back and told them no response from tower on so and so freq. He said to call back, I know they are there, talked on land line few minutes ago, so back I go, about 3 mile final. Still no reply from Tower, much less landing clearance, then FBO comes up on the #2 says he hears us on his scanner on tower freq and he'll call the tower on the land line. We've heard no traffic, seen no traffic and in the clear and got the runway in sight and debating weither to land or not. We feel we're safe as far as traffic goes and continue figuring some kind of radio failure somewhere. About 3 seconds before the wheels touch down we get a quick "cleared to land" from a male voice and land. Clearing the runway he tells us to contact gnd and gnd is a female voice. I convienced we caught them with their pants down......sort to speak..... at least it's a nice thought.