Thanks - I was fairly sure that was the case. If anyone else is interested: I found the guidance form the NSSF here ( http://www2.nssf.org/l/127421/2020-04-28/42prlx ) that says as much and even references/links the ATF guidance for these situations.
You are going to be fine. oakridge is saying exactly what you were told by your local PD. While your physical DL shows it expired, the computer systems will show it was extended due to the wuhu flu and, therefore, valid.