Pulling up to Nikola's restaurant yesterday, you might have expected to see a line of Beemers and Benzes in the parking lot instead of Civics and pickups. Inside, you might have anticipated a passel of power-lunchers swilling martinis and munching on haute cuisine instead of a couple of older women quietly eating lunch. After all, this is the place that publications from the New York Post to the London Telegraph have been describing as "posh," "tony" and "five-star" in the week since the Kerry for President campaign rolled through town July 30.