Tennis Incident

So this did happen awhile ago in the summer of 2009, but what happened was, me and my friend Joanna wanted to play tennis on this excrutiating hot day. She mentioned how mt.tabor's tennis courts were cool and had shade so we decided to go there after summer school. When we got there two old men in there 60s were there and asked if we wanted to play with them. We told them we were kinda bad and walked away. It was fine at first just playing but when we took a rest, one of the guys came over to refill his waterbottle and asked where we're from. I didn't have a problem so I just answered him, Joanna obviously did. My bad for answering for her, I just thought it might be rude to leave him hanging, the question didn't really offend me of some sort. Later when they decided to leave they rode their bikes to the exit but for some reason they chose the exit close to us? And when they were about to leave one of them picked up our ball and kept it and came over to us and asked our age. I was like uhhhhh...15? Joanna told me she wanted to ask how old he was but later he drove away. He stopped after he exited and was behind the fence, Joanna didn't notice but I was wondering why he stopped, did his bike get caught on something? When I looked over he took a picture of me and her on a DSLR or a SLR camera. I quickly turned my face away and when I stared up at Joanna she had her back to him, I thought she knew what he was doing beforehand. I wanted to act natural and not question him but I didn't want to be in the picture. Why the hell is some old guy taking a picture of a couple of girls he just met? Because he's a freaking creepy pedofile! I tell Joanna what happened and she freaked out over it. She told me she thinks she overheard them saying that their goal today was to play tennis with a girl. How creepy is that? We aren't planning to go back there anytime soon, and we sure hope his camera gets dropped on the way home or ran over by a car or something! I feel violated and disgusted!