One idea that I had is for bilingual speakers to show up at any Metro Council public hearing and deliver their comments on the issue at hand in a language other than English before delivering them in English. A more modest approach might be for everyone who opposes English Only to close out any remarks on other subjects in public hearing with the words "Gracias. Adiós."
Update: So, I'm just wondering, if one did speak in a foreign tongue in a public hearing and was charged a fine, what if the speaker refused to pay the fine? Would they be sent to jail for speaking Spanish?