What are the rules in your league? Our rules say that if the players get to 6-6 and then have a tied score in the set tiebreak when time lapses, they would play a sudden death point to determine the winner.
If your player stopped between points to consult the rules while match time remained *and* if she took longer than 20 seconds to do so, then she violated the Continuous Play Rule. If I were on a grievance committee and I heard this, I would rule in favor of your opponent.
If your player wishes to consult the rules, she had best do this on a changeover or set break. No way should one player lose her chance to compete because your players can't be bothered to know the rules when they step onto the court.
-- Random Error Generator, Version 4.0
-- Master Moonballer