Most breweries in town are open till 11. They often do last call earlier than that. That's allowed either by their zoning or the PUDs they got. As Field said, Main Street Springfield is not zoned to allow for breweries, so Hyperion had to get PUDs; due to pushback they had to settle for 10 pm. At any rate, it's not personal when any bar refuses to serve customers after their last call, especially when they probably wish they could serve them later.