It's probably half a quart overfull, five full quarts. Don't think twice about it, won't hurt a thing (on this particular application, I don't claim to know every engine, but this I've had for 90,000 miles).
And yes, I've done it and lived to tell the tale. If you're moving you just don't want/need an extra half quart of oil to move. But at the same time the BITOGer in me can't throw a half quart of fresh synthetic into the drain pan.