There are two situations when Clemenza lets other people wait for him in the car while he's finding physical pleasure. Both scenes were cut in the end.
In GF2 he lets Vito wait in the car while he lets a woman pay a dress physically.
In GF he lets Paulie and Rocco wait for an hour or so, (I think he's telling them he has to make some phone calls) when in fact he's having a big pasta lunch. I like this scene even better, because it's such a cool and bold thing to do: Having a good lunch before sending a man to the land of no return.

Do you think that those scenes (both appear also in the novel) are a deliberate parallel?