Hi everyone, a big thank you for everyone's help. Reporting back on my adventures with these ghosts, and I am happy to say that I was able to remove the ghost today. I clicked the refresh button and then the remove button as soon as the screen reloaded the Z-Wave details, and they magically disappeared. Maybe it's a timing thing like @bobbyD suggested but I didn't have to roll out the tin foil or use a Z Stick, though my sister was rolling out the foil when I to hit the refresh button 
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Thank you everyone for your tips. I hope I never have ghosts pop up again, but if I do get them again, I'll be using the recommendations discussed on this topic.
