Hi there, has anyone used these services for more serious offences other than speeding and what were the results?

My father (74 yrs old, non English speaking) got charged yesterday with Failure to Remain. He was going to church at 7:45am, struck a pedestrian which he didn't realize he hit and went to church (which was approx 15 feet away from the accident site. He parked his car, someone said something to him i...