99 Sable stalled

My 99 Sable stalled while stopped at a light and the windshield wipers came on by themselves. It started right up again with no problem. I had used my windshield washers shortly before. Is it possible that there is a leak somewhere that sprayed washer fluid and caused the car to stall, and could that also cause the wipers to come on? Or do I have some more serious electrical problems to worry about?