Yes, did see a hookup occur in the infield, under blankets. Also a BJ in the men's bathroom in the box seats, grandstand. It's a drunken mess.
Pro tip #1: Don't order the mint juleps. These are a wreck of HFCS minty-whatever and really cheap bourbon (if you call it that legally).
Pro tip #2: Walk around the concession stands before ordering your first drink. Look for the leaky perfect-pour guns that serve alcohol. (Perfect pours are those guns which are supposed to pour a single ounce and then shut off but these things really pour less than ounce.) The leaky guns do occur and cannot be fixed hat day.Instead of turning them off they just allow them to be used and hope for the best.
Make sure you make eye contact with your pourer, give them a wink and tip them well. You will get great drinks for the rest of the day.