They will order the business owner to have his personnel trained. If he refuses they will fine him or order his business closed. If he refuses to comply, yes, they will come with guns.
This is REPULSIVE.
I live in a neighborhood riddled with shops where the signs are written in other-than-English languages. All of the signs. On occasion, I translate into English for family members in their own neighborhoods!
Customer language accommodation is not a right but a service. It may be good business if you're on the Mexico-United States border or the Canadian border near Quebec but it isn't a right of the customer.
This is not emergency medical service.