'Love & Hip Hop: Atlanta' Production Halted After Alleged Hit and Run

"Love & Hip Hop: Atlanta" production came to a screeching halt after one of its staffers was allegedly run over in a parking lot.

Production sources tell TMZ ... the scary incident went down Wednesday at the high-end Buckhead shops where Mimi Faust and co. were preparing to shoot. But we're told things went south before cameras started rolling -- a security guard was allegedly run down by an angry mall customer.

We're told security was saving a parking spot for the production, which pissed off the customer. Witnesses tell us he revved the engine and struck the security guard ... injuring his left leg.