Punt Situation

[bbcof83]

I had a situation similar to case play 4.2.2 Situation G the other day: here is my version: K1's punt on fourth and 10 is from his own 20 yd line. The kick is high and short. R1 gives a valid signal beyond the neutral zone but does not attempt to catch the ball. The ball rebounds behind the neutral zone and toward the sideline where R2, realizing he has space to run. tries to pick up the ball but can't gain control. The ball is subsequently recovered by K3 at it's 15 yd line.

We ruled 1st and ten for K at the 15. However, we debated for a bit whether the point at which R2 touched the ball effects the play. Does it? Does R2's touch of the ball on the other side of the neutral zone change how this play should be dealt with?