The victim was trying to get out of the vehicle when a short struggle ensued, resulting in both men falling to the ground, police said. Emmons then stole the victim's wallet and car keys, taking the victim's van to flee east on Hempstead Turnpike, police said.
The van was later found a short distance away on Hempstead Turnpike in East Meadow. No one was injured, police said.
Emmons has been charged with second-degree robbery and is scheduled to be arraigned Sunday in First District Court in Hempstead.