Deep clean and coffee grounds sound pretty good. You absolutely don't want to spray any commercial scent (or any other scent) into your pipe. Most fragrance is a chemical simulation of natural scents, floral, spice, musk, and etc., that is not meant for internal use, not meant to eat or inhale, both of which you do when you smoke a pipe.
So you start with unknown random chemicals in the cologne, then you burn them creating benzo-a-pyrene and who knows what else, depending on the formulation. You just don't want to do that. So the short answer to your question is no, don't.