The awful, terrible person who crashed into a 7-11 storefront on June 9 -- ran over a 7-11 worker -- and then fled the scene ... has finally turned herself over to authorities.

The driver, 32-year-old Willaisha S. Rankins surrendered to authorities in Philadelphia Friday and is being held on $40,000 bail.

Willaisha's surrender was captured on video by NBC Philadelphia.

The security footage of the incident shocked people across the globe -- because after Willaisha smashed the store ... her passenger casually opened the door and walked around the street like everything was hunky dorey.