Keep going.

You decide not to stick around here, and keep moving. Eventually you come to the concession stand. Behind it is completely blocked off from the rest of the park, at the very edge near a hill. Here, you'd probably never be seen! There's not even a garbage can back here or any reason to come. Plus, the place is closed today. Score! Nobody would have any reason at all to come this way then.

You stand there, with your hands on your skirt. You're hidden, but still in public, with no panties. You shiver.