Get a front and rear dash cam. Don’t be dealing with ~$7k worth of damage like me

A guy rear-ended me on a local highway, smashing my trunk, and after a whole month of deliberating, his insurance declares he was not at-fault. Nobody had video coverage or witnesses so this is some BS the insurance concocted, without even investigating my car damage. I used to have a camera but took it down when it had some SD card problem, and I'm really kicking myself for not replacing the camera.

Sorry to vent. Don't be like me. Get a front AND rear camera. As you probably know, the lockdown brought out the crazy drivers and you don't want to have to deal with more stupidity after an accident.