It's quite likely they had no idea.
Easy to imagine a scenario where there is a company owning the building, one owning the cameras and maintenance, one owning the data/recording, all wrapped up in management partners mergers shells etc.
https://www.nyc.gov/site/nypd/bureaus/investigative/intellig...
1. https://en.wikipedia.org/wiki/New_York_City_Police_Departmen...