No, because when you file a homeschool affidavit, you are notifying the district that you will be homeschooling. You are not asking for permission or approval. The Pennsylvania Department of Education confirms this on their website:
“Regulation found in 22 Pa. Code §11.31a states that school district approval is not required to commence a home education program when all necessary paperwork has been filed.” Source: https://www.education.pa.gov/Policy-Funding/BECS/Purdons/Pages/HomeEducationProgram.aspx
You can begin homeschooling the same day you mail or hand-deliver your affidavit and objectives.