You anserwd your own question> anything.
Pends on the mood of LE and your interaction with them and exactly what is their purpose there. You could get a verbal lashing and sent home, charged with being a found-in and given a promise to appear, taken to the drunk tank if your intoxicated and mouthy (happened to a friend of mine yrs ago), or have all your donuts stolen if you have brought in a treat for the ladies.
Really every situation is different... pends on a variety of circumsatnces.