Vermont does have a limit on the "number of drinks" a bar tender can hand to a single customer in a single transaction. The "number of drinks" is not determined by the number of glasses or bottles but by the number of individual servings of alcohol. Long island ice teas can contain 4-5 servings of alcohol. They might actually be illegal for bars to serve in Vermont. Like with any liquor license/regulation enforcement can vary wildly from area to area. Bars/restaurants that have strikes on their records are far more likely to follow the law to the letter due to higher levels of scrutiny.