I'm kinda a H2h guy at 3 feet myself in this scenario, unless I've got my trusty PUG 22mag palmed as is so often the case walking through parking lots [ having taken it from my right front pocket upon exiting the store.
Many scenarios, the PUG becomes the primary for the first shot at spitting distance or closer as in this scenario.
Raise PUG, fire into his face. Drop PUG while moving further away [ left or right as available ] and draw the usual primary. People poo poo the PUG in any caliber for SD, I make great use of it in parking lot scenarios, whether that's a grocery store, walmart, movie theater, etc