Well, it looks like such behavior may soon be made illegal in the city. Stores could soon be paying $400 every time they misuse that doorstop:
http://racked.com/archives/2008/08/1...ws_the_law.php
Starting Thursday, businesses that keep their doors open while blasting air conditioning—like all the shops in our This Store Blows series—will be breaking the law. The City Council is about to approve a measure that give stores one warning before charging $200 the second time they're found wasting their AC. After that, it's $400 for each violation. "Council Member Gale Brewer, who represents the Upper West Side, said she introduced the bill after receiving a steady stream of complaints from constituents who were frustrated with stores that kept their doors propped open in the summer, allowing cold air to flow out of the building onto the sidewalk." Guess we weren't the only ones who noticed.