Walked Batter leaves base path and contacts on deck batter

Question
Is it legal for a batter/runner to leave the base path and/or make contact with a player or coach prior to reaching first base after a base on balls?

I recently witnessed a Florida High School Game where, after a batter was walked, she immediately ran out from the batters box to the on deck circle, grabbed the on-deck batter by the shoulders, had a short face-to-face conversation with the on-deck batter (presumably to discuss game strategy), then ran over to first base.

Answer
Marc,

There is nothing in your description of events that I believe I could call the batter/runner out on.  As the umpire I would have some comments to the coach between innings that when a walk is received, the batter/runner is to head directly to first.

The first time it happened if the conversation lasted more than a couple of seconds I would be talking to batter/runner to get them to first to get the game moving.  If it happened again the offending team would be very hard pressed to get any walks from me!

Tom