Which side of the tracks is the vehicle on?
The city's downtown map identifies Harris Pavilion at 9201 Center Street, the train depot at 9431 West Street and the Manassas Museum at 9101 Prince William Street. These make useful reference points, but none identifies your car's precise parking location. Give the actual lot or garage, entry street and position where you left it.
Main Street, Battle Street and Prince William Street also appear around downtown parking. If you have walked away from the car, check which entrance you used before describing a meeting point. For automotive locksmith help, the garage or lot and vehicle details are more useful than a venue name alone.
Say whether the key is locked inside, completely missing or present but failing to work. A replacement-key discussion needs the make, model, year and key type, with compatibility confirmed for that vehicle. A customer waiting near the depot may have parked somewhere else, so keep the vehicle location separate from your current position.
