Source: Wisconsin Democracy Campaign (highlight added)
Custard stand's language practice prompts call for federal probe. (Milwaukee Journal Sentinel, 5/18/2016)
Leon's owner Ron Schneider told the Journal Sentinel Wednesday night that employees and customers of the business are not prohibited from speaking Spanish, but that for about a year he's been telling staff to communicate in English as much as possible.
Not the first time, a related article:
Palm Springs restaurant cooks up English-only rule for employees. (KESQ, 1/15/2015)