After you file

I moved and had a feeling that I was going to be receiving a letter. After several weeks with nothing, I finally just made an appt at the local IRS office but then the very next day, my old roommate texted and said that she had received my letter and that it had been in her stack of mail that she hadn't looked through. I call the IRS and verified my identity and the rep (very helpful BTW) said that everything was fine and that she had put my return back into processing, 9 weeks, blah blah blah. Does anyone know if I need to cancel the appt? Will that trigger some sort of red flag?