been this situation a few times..
I find most people who get out the car are actually shit frightened and are hoping that their presence will scare you.
Last fool that i had a run in with was in vic park, where a dude pulled a baseball bat out of his car, i nailed the 'line thinking he was gonna hit it. Then when i got a fair distance from him i asked him to come and fight like a man (ie. without your bat). the tool then drives over acting all aggressive (me with a big smirk on my face). starts yellin' at me from his window, whilst i am repeating to him to just simply step out the car and fight. took him nealry 10mins of contemplation then he finally gets out his car, attempts to run at me with this huge haymaker, i grab the arm sweep both legs and take him to the ground where i then inform him that i am about to break his arm (where he then realises that i have 2 martial arts under my belt) - he starts crying!! i ended up feeling sorry for the guy and helped him back to his car??
now why the hell do they even bother?!! i felt like referring this guy to a psychiatrist?!!