I have no idea how your NAPA is arranged regarding the machine shop, but in FL the machine shop was a separate entity from the parts store.
No prob finding contact info- https://www.napaonline.com/contact-us.aspx
2999 Circle 75 Parkway
Board of Directors: Mr. Thomas C. Gallagher Chairman. Ms. Wendy B. Needham. Mr. Gary W. Rollins. Mr. Lawrence G. Steiner. Mr. Jerry W. Nix Vice-Chairman. Dr. Mary B. Bullock. Mr. Richard W. Courts.
Parent company of napa auto parts is Genuine Parts Company- GPC.