Thanks for this.
Next restaurant that pulls this on me, it may not work, but before paying I will call the manager over and ask (nicely, I hope) what exactly is this fee? Then I will (nicely, I hope) state that their food charges and taxes were anticipated, but I object to this new thing which was not advertised and please have it removed. I will probably lose, but then I will write to the company, and fill out their on-line survey that the fees are dishonest unless they have a sign at the entrance outlining these fees, and that if this continues I won't patronize their place again.
I suggest that we all start registering our objection to these sneaking restaurant fees, one visit at a time and utilize their online surveys to complain.
The Resort Fee practice went industry wide so we are probably stuck with them. But perhaps public pressure, even one customer at a time, could head off some of these ridiculous new types of restaurant/bar, etc, charges.