Interference vs Fair/Foul

[mcrowder]

Batter hits a dribbler right down the third baseline. F5 charging and R1 from third are about parallel to each other coming down the line. F5 cuts in front of R1 to field the ball, but just as she's about to pick it up, R1 collides with her - they both fall, and no one touches the ball.

First question - should I be cognizant about the status (Fair/Foul) of the ball at the moment F5 likely would have picked up the ball? Does that even come into play?

Second question - if the ball was never touched, and eventually stopped short of third base in foul territory (or rolled past third in foul territory), does that negate the interference?

I feel like I botched one here, but want to hear the answers to these two questions first before I tell the rest.

(Edited to add) : ASA Rules