Agreed Plan B.
Further in a CCW class I took years ago with instructors who were FBI and DC police they felt the same way as this subject came up in class.
One instructor went so far as to state a scenario nearly exactly the same as this occured to him while attending a concert in the venues parking lot. He said he took a few licks whilst attempting to contain the guy (and exchanged blows) ultimately going home with a blackened eye and his firearm having never left it's holster. The attacker in his scenario was much smaller than he was with youth to his side and alcohol courage working against him.
- Janq would not have drawn muchless fired