Runner attempts to advance during dead ball

[bigwes68]

Haven't posted in a long time because I'm not officiating this year, but I saw a play in a game today that intrigued me because I've never seen it before.

NCAA. R1, R2, 1 out. Home manager requests time, comes to plate umpire to make what ends up being a triple switch (not really relevant to play, but also rare). While all this is going on and while new F1 is taking warmup tosses, R2 comes over to talk to third base coach, but nonchalantly stands on third while doing it. Play resumes, R2 remains on third. Before a pitch is thrown, home manager comes out to point out that runner is out of position, also has a few choice words for visiting manager (needless to say, R2 would have definitely got one in his ear if he had come up again; this was the 8th inning). Umpires make R2 return to 2B, play continues without further incident.

Correct ruling? What happens if a pitch is thrown or if F1 steps off and throws to 3B (or 2B)? Should runner be ejected for unsportsmanlike conduct (I believe NCAA softball has a rule regarding this very situation, don't know if baseball has a similar rule).

(Home manager told me after the game that he asked all three umpires what the proper ruling was and that he got three different answers.)