What a scare…I’m glad they’re both ok! Sorry about the vehicle damage and the whole thing. I know that has to be upsetting and angering and worrisome altogether.
Unless you want to press for some kind of charges against him and unless/until the police ask for your video footage, I’d keep it under wraps and share that with your insurance company instead. Aside from citations it’ll be the insurance companies that hash all of this out, and if they need to subrogate and figure it out in court, then that may be where your video has the most value. From the sound of things it’s plausible that it will not be a 100% fault on one party. I would try to work hard with your insurance company to have them pressure the other guy’s insurance to make you whole, not just dole out a valuation amount. This depends on a lot of things but if things look strongly in your favor then sometimes the other company will pay considerably more just to avoid the expense of court proceedings. It all becomes very businesslike and matter of fact to them, sadly, so you may need to speak up often and perhaps loudly.
Also, unless there’s a really good existing reason to pursue a restraining order, I don’t think I’d recommend that…often has the chance to make things much worse. But if there is good reason then yes, absolutely go do that. And given the circumstances and proximity of your residences, asking for an emergency order might be worthwhile (or whatever California may call that procedure…basically granting the restriction immediately until the normal hearing/judge’s decision can be held).
EDIT: to add…you probably don’t need to get your own attorney right now. Wait until things play out with insurance to see where things stand. At that point if there’s reason to pursue him civilly then get a couple of free consultations with attorneys. If there is any criminal interest bigger than a citation for him then that won’t be in your hands anyway. If you want to, you could contact a Legal Aid office to see if someone can walk you through the probabilities and flow chart of what’s going on. If you don’t have LA or something similar then call up the state or county bar association and they can likely direct you somewhere that will help and who isn’t necessarily looking to be hired by you.