Another one

[Manny A]

Originally Posted by TwoBits

I supposed you could make a case for interference when a team mates comes out on to the field, but that would be for interference and not for the action of the batter.

No you really couldn't. After all, what are the teammates interfering with? Who are they hindering? What play is taking place?

More than likely, your #3 is what would happen. I can't imagine an infielder staying in fair territory while the BR goes over to her dugout, discards her helmet, and is handed her glove. If, by some chance, there is still an infielder in fair territory, and the BR makes it to first base with her helmet off and her glove on, I suppose the rules leave us no choice but to say she's still a viable runner.