Fail...
They needed way more logistics. Hundreds of statues, deposited in the dead of night, (or what passes for it in NYC) made out of relatively durable materials (coated in silicone oil would be a plus...) and affixed to a large flat high surface area base with some sort of ungodly strong construction adhesive to the pavement.
If the artist was truly "edgy" he'd have put a lot more "4Chan" into his thinking, and a lot less "normie".