Everyone gets stonewalled. That is what they do.
You are asking the wrong questions to the wrong people. Stop talking to the local PD and call the SPBI instead.
Ask for 'records'. Have your money order information ready.
Tell them you need to know the date your fingerprints were received and the date your national criminal history background check was sent back to the local issuing authority.
If the first date > 5 days or the second date > 1 week, let us know and we can explain how to appeal.