The Chateau on the Lake owner Buddy Foy Jr. gives an update on his business after getting fed up with New York restrictions and opening a new restaurant in Florida. Two weeks ago, when the thermometer plunged below 20 and indoor dining was still off-limits in the city, intrepid New Yorkers continued to cling to vestiges of their social lives. On East 60th street, patrons at the once buzzy Le Bilboquet were huddled in outdoor cubbies, wearing hats and scarves while nibbling on Cajun chicken and sipping Bordeaux. One block up, 10 tables at clubby La Goulue struggled to share four heaters while diners gripped bowls of onion soup for extra warmth.