FED question...

[CajunNewBlue]

ok, had a situation this past weekend... we are playing FED with catholic league rule modifications (nothing that effects the play im about to describe)

passed ball for a dropped third strike.. BR breaks for first. catcher is fielding/chasing down ball on first base side.... throw comes from foul side and F3 is leaning out and across the base toward foul territory (her foot is on the second base side of first) so essentially she is committing OBS... except, runner never slows down or changes direction, as she started to run in fair territory. and she is promptly pegged in the back by the throw 10' from first while completely out of the running lane.
called her out for INT... but dangit, it didnt seem right.

Coach did ask me where was his runner suppose to go?.... i told him to shut the H*ll up and go back to his bucket before i was forced to smack him him in his whiney mouth. (ok, i didnt ) I told him she had to run in the 3' lane and let me deal with the OBS if it happens.

Question is ... is there an exception to the 3' running lane requirement?... and if there is, where is it? because i cant find it.