It would be funny to have another sign nearby that has flags and something about "we don't care/do whatever you want". If the first sign is enforced by harassholes, the second is not. There's no rule or law governing what you can put on your own window ?
I own a business and did the same thing. The lack of sign was the punishable offense. But they will be damned if I enforced it.
I think if you had hung the sign a bit skewy somehow and put some patriotic stuff around it then people would have got the message...
I think wording matters. Just the minimal for us.
You can tell a place that really means it by how over the top they went.
It would be funny to have another sign nearby that has flags and something about "we don't care/do whatever you want". If the first sign is enforced by harassholes, the second is not. There's no rule or law governing what you can put on your own window ?