Rough engine only after short stops

Engine runs rough only if i make a short stop. Stop for 5mins at a gas station, runs rough for a few miles before smoothing back out.

Engine off all night, or when I'm at work all day, runs smooth.

I've had a ghost leak in my evap return for quite awhile, nobody seems to be able to track it down.

 

As a Guess leaking injectors ( 1 or more)foul your plugs it takes a few miles to clean them off.