She and her grandson were driving in her car. He was working on his homework, and asked her to turn the radio off. She did, but a block later, the radio came back on!
When she would get into her car, she noticed the bright lights would be on. She knew she never left them on high beam. As she backed out of the driveway, her turn signal came on. She looked up and the rear view mirror was tilted down.
At that moment, she knew for sure she had been visited by her husband.
(Note* Many people say they experience odd electrical system happenings with their loved ones who have transitioned.)