I wouldn't sweat it Kevin, as we all know, it won't be long and that big boy will have the attention span of a 3 year old child when he's thinkin with another part of his body. Like everyone else here has already said, if you think he saw you, you'll need to move your stand, but I'd wait a while to do that too, as staying out for a while will help you either way.
As far as what marmax said..."Nothin' worse than the feeling of missing a wall hanger" There IS something worse I'm guessing, and that would be if you were on here to tell us you WOUNDED him. I've never lost a deer, but have been on plenty of blood trails that didn't come to a happy ending with hunting partners, and I would take the CLEAN misses I've had over what they went through ANY day. Good luck to you and I hope you get another chance at him!