Dude intentionally hits my car over a parking spot

I was at a store and looking for parking I see a dude bout to pull out of his place I did see another dude on his phone potentially waiting for the spot no blinker on, but I wait just in case he wasn’t waiting. The car left I waited two seconds to see if the other dude on his phone was gonna take it he didn’t move. I decided to take the spot shifting in to park I then see him pull his car 5ft away from my car COMPLETELY STOPPED I said ok I’ll give him the spot as I’m going into reverse this dude just rams into my car intentionally and I’m just like WTF this makes no damn sense and just walk up to him like bro I would have moved. We exchanged info and now I’m like hmmm should I go through his insurance or should I just take 800 cash. My friends say I should lawyer up and get an easy settlement but I’m in a time crunch and travel for work on Monday so ya. I did agree to meet him in the morning for the 800 but I’m thinking of backing out and doing insurance so he can learn a lesson, but my friend is really urging me to lawyer up. The establishment has a clear video of it all but won’t give it to me only police or insurance, but the security guard said ya he’s fucked. And I have a witness. So… ya I’ll leave the decision to you guys what should I do. Lawyer? 800? Or insurance?