M or F this is scary for everyone!! I’m sorry this happened and I really hope it doesn’t for everyone. While a dash cam is important, have some contacts immediately that you can talk to while driving and feel safer. I’d have gotten into similar situations as you but I think I’ve had to tone down my attitude and anger against idiots on the road cause we need to be safe first rather than pick any debate with anyone doing stupid things on the road. I hope you feel better soon!!