"This sounds like a great strategy of using local customer and authoritative references to increase social proof to close sales."

Isn't that just what Facebook did? Got one notable school to adopt it, and then used that as social proof of its value to expand?

"A peep hole is not a disruptive product."

It is if you're a door-to-door salesperson. Big difference if people feel they can quietly ignore you after peeping out the hole, versus having to make some sort of contact and then trying to turn you away.