Last time I had someone park really close to me like that I went home grabbed my land rover (I beat the hell out of that thing and actually treated it like a land rover) parked it like less than 1" from his mirror on the driver side then got my buddy to bring his old rusy buick and park about 1" from the other mirror... Then we went to the entrance of the store sat on a bench by the door and watched for about 45 minutes while he tried to figure out how he was going to get in his car... He walked back toward the store picked up his phone called a tow truck to come tow our cars.. we casually strolled accross the parking lot after he was back inside got in our cars.. and drove away
. Get creative fellas