2003 Mazda Protege Oil ran dry

A national brand oil change shop did not tighten the oil pan plug and the engine oil ran dry while my daughter was driving her Mazda. She stopped immediately when the oil light came on. The shop towed her car at their expense, diagnosed the engine, refilled the oil, test dove the vehicle and pronounced it sound. After driving 20 miles my daughter again stopped the car and had it towed when both the check engine light and oil light came on. She reported that the engine was running rough and loud. I'm going to suggest to the shop when they open Monday morning that they take it to the nearest Mazda dealership for a thorough engine diagnosis. The car was in excellent condition with very low mileage and the oil change shop has promised to make it right. Does anyone out there have any other thoughts or suggestions?