Apparently, there are! :^) Geno's Cheese Steak story is making the rounds:
Steak Landmark Causing Lingual Controversy (This is America. When ordering speak English)
June 5, 2006
Owner, Joey Vento questions the controversy [over his sign].
"Joey Vento/Geno's Owner: "Whoa, whoa, whoa - this is America. And God forbid Joey Vento says this is America. You speak English in America."