I've found that if you're discreet and show no signs of intoxication, no one cares if you drink. We were at St. Andrews State Park in Florida back in March. The rules say no alcohol, but when we got there we noticed the recycling bins were overflowing with beer cans. DH mentioned it to the ranger and was told that we could have alcohol if we were responsible with it. DH went straight to Walmart for a case of beer. I, on the other hand, came prepared. I always pack my vodka in the cooler for drinking discreetly in a plastic cup.