Weird, many folks (including me) don't think pinot should be decanted as a general rule. And the wine bottles should be shown to the diner and opened in front of them, not carried out back to decant.
And anyone with any knowledge of Bordeaux should KNOW that an $18 is NOT Bordeaux in any way, shape, or form.
I'm surprised they'd have a pinot at that price point.
Also, the Bordeaux probably cost the restaurant more like $400 or so.
A pinot that is $18 at a restaurant would probably cost $8 retail, and $5 to the restaurant, if that. The cheapest wines at a decent restaurant around here start at $35 or so.