Run the car 'til it's warmed up and all the gunk and particulates (mostly soot and silicates - very bad) are suspended. That's the point of an oil change... to remove the particulates and chemical contamination (gas, moisture, etc.) from the motor. The lubricating qualities of the oil far exceed even the most generous oil change schedule - but you want to get the 'dirt' out.
It's also best to swap the oil prior to storage, for future reference. Then park it and leave it!