The car contained three black men in their mid-20s, who all spoke with Yorkshire accents.
At this point, a woman walked around the corner and disturbed the three men, who then drove off.
Police enquiries are ongoing, but officers would like to speak to the member of the public who disturbed the men.
If that was you, or if you can help with the investigation, you can contact police on 101, quoting log 241 of 23 March.
