Exactly!
The restaurant owner admits that he has been deliberately and knowingly charging online customers one dollar more than the advertised price for each and every item, "for quite some time." That is theft and fraud, and it is illegal.
Ben’s consulting practice focuses on preventing and detecting online fraud (especially advertising fraud). Representative clients include the ACLU, AOL, the City of Los Angeles, the National Association of Broadcasters, Microsoft, the National Football League, the New York Times, Universal Music Group, the Washington Post, and Wells Fargo.