Teddy - I can understand why you were freaked out. While I realize that sometimes a couple can get so turned-on (even at 11 in the morning) that they WISH they could just go to it wherever they are, but I would hope they would find a private spot to do so. Next to a trail does not sound like a good idea to me!
"When I'm on my bike I forget about things like age. I just have fun." Kathy Sessler
2006 Independent Fabrication Custom Ti Crown Jewel (Road, though she has been known to go just about anywhere)/Specialized Jett