I think the big point were batting around here is simply: What rights does a retired runner or a runner who has scored have on the field? As far as I can see they only have the right to not interfere with the offense and/or the ball.
How about this:
No outs, bases loaded. B4 gets base hit to F8. R1 from third scores easily. R2 from second rounds third and heads home. F8 fields ball and throws home but the throw is short and F2 moves inside the diamond in front of home plate to catch the throw. R2 slides across home plate. F2 misses the catch and the ball goes to the backstop with nobody backing up F2. F2 turns and goes after the ball but runs into R2 who is getting up from her slide into home. F2 falls to the ground as R3 comes home and the BR moves to third.
A. R1 and R2 score, ball is dead when F2 trips over R2. R3 is out for R2s interference and BR returns to second.
B. R1 scores. R2 is out for interference with F2. R3 returns the 3B and BR returns to 2B.
C. R1 and R2 score. Ball is dead when F2 trips over R2. R3 returns to 3B and BR returns to 2B.
D. Play stands as R2 did not intentionally interfere she was just returning to her team area.
