point blank if you did it to me and I wasnt getting out of the car, I'd reach in the glove box and rain fire on your ass... Honestly you cannot defend yourself unless you are in imminent danger, ie your life is ACTUALLY being threatened. If you spray someone first for revenge, you are the aggressor and the law is pretty cut n dry on that. If he rams your car after that, or does something else stupid immediately following your spray, you are still responsible. Defense is almost always a stronger case. Old man 2 yrs ago shot a guy dead that came up to his window without even rolling it down and got away with it... here in Atl... and I cant exactly shoot you first and then spray my car and self with OC... so... I'm just sayin man, you have to think it all the way through, and not the best case scenario...be safe... follow the fucker home and then, take a whole pack of bologna n cut smiley faces and phrases that convey your feelings in every piece. Put those all over his car. When he wakes up, the bologna will have eaten the paint off to the metal, leaving him some nice rusty smiley faces and choice words in two weeks.
Hope this helps, no neg reps pls