Mary-Claire Frere pleaded guilty to obstructing and resisting a peace officer when she appeared in Drumheller court on Wednesday.
She was given an absolute discharge because she had no criminal record.
Last June, a man who was fired from a car dealership in Trochu (TROH'-shoo), Alta., allegedly threatened to kill his former co-workers.
Police say there was a five-hour standoff at the man's home when he holed up with a knife and refused to come out.
Chad Frere, who is 38, is to go to trial June 5 on two counts of uttering death threats and one charge of assault.