update
9:30 AM PT -- Police just released Gary A. Miles' mug shot and the charges he's facing.
Philly PD says it's booked Miles for indecent assault, indecent exposure, open lewdness and harassment.
The Philly man accused of masturbating on a woman's leg inside a Dollar Tree store has surrendered ... after cops, and even rapper Meek Mill, launched a manhunt for him.
Cops confirmed 35-year-old Gary A. Miles from Southwest Philly is now in custody after voluntarily surrendering to authorities Wednesday evening -- a move he made after the alleged victim posted video of him fleeing the store immediately after the incident.
The exact charges he's facing will be announced once they're filed.
Miles was known to hang around the area before ... with store employees telling police they'd seen him at the plaza where the incident went down, and also a nearby I-95 underpass.
As we reported, the search for Miles was on after the victim's video went viral. At the end of the clip, she showed what appeared to be semen on her calf.
The video was so shocking, even Meek Mill got involved, posting ... "Let's play manhunt" and offering a $2,000 reward for info on the suspect. But, it seems like he won't need to part with that cash now.