I am agreeing 7 months later...its poa.
I am seeing that it was resodded with big roll sod. 4 feet wide and about 60 feet long. So therefore you can see some sod rolls from the sod farm were almost free of poa. And some were partially infested. Some heavily infested.
I would not be happy with the sod farm. Then again I am sure they could have spent more and gone to a better sod farm. However--now that the poa has gone to seed--perhaps the soil is permanently contaminated with poa, and better sod would not solve the problem.