That reads exactly like something I'll see blockquoted on Snopes in the near future.

I'll probably be at Snopes because I'm replying to a Facebook repost by an older relative, the kind who forwarded pearl-clutching emails before they joined Facebook.

There are more than a few cafes and restaurants that I've seen in Philadelphia that have a sign indicating that as a restaurant, they do not allow the use of laptops or phones, and as best as I can tell, it's had no negative effect on how busy they've been.