You, like me, had a bad experience from a bad driver and liar, so I got a dash cam, and so should you.
Get the police report. Give it to your insurance company.
Find out if the guy paid the ticket or if he has a court date. If he paid the ticket get a copy and supply to your insurance company. If he scheduled court, then show up and be a witness against him and help get him convicted. Police and prosecutors often go backwards and tell you that you can't go into the courtroom or you can't testify. Don't believe it. Sit in the courtroom and when they call his case, you go up there too. When the judge asks you who you are, say your name and that you are a witness and wish to testify. Then when he loses, take a copy of the judges decision to your insurance company.
Don't sit around acting baffled. Get your butt in gear and don't let this rat get away with bad driving, causing an accident and lying!! Give him a surprise that he'll never forget!!
I've been involved in a few