However, once your glass is empty, you can order the next drink without any issues. However, increasing the alcoholic content of a drink without proportionately increasing its price is illegal in Tennessee, no matter what time it is. If you're starting to get the feeling that these fine distinctions present a potential minefield for servers, that's because they really do. These regulations are very similar to alcohol laws in Arizona, except that the latter are even stricter, as only up to 4 ounces of liquor and 32 ounces of beer can be served to one single person at any time. If you're bringing drinks to a large group, get ready for multiple journeys to the bar.