Not sure the rumors about nails is correct. I searched several articles and this was the best one I found:
I believe the nails were at a church in Louisville KY, and the people were going inside for that one. Which was foolish. Doesnt excuse the nails, but gathering inside was not the best idea.
**Not sure the rumors about nails is correct.**
A local reporter took photos of them if you don’t believe it happened.
https://www.theblaze.com/kentucky-church-police-license-plates-nails