If it were my quilt, I'd still show it! It's beautiful! Your quilter did a fabulous job quilting it.
I don't agree w/dgmoby's comment about 'thinking 2x about the quilter'.... The quilter did a fabulous job. It's NOT the LA quilter's responsibility to make sure a customer's quilt top has all it's seams pressed in any particular direction... Myself, if I knew it was going to be entered in a show & the quilter was SERIOUSLY wanting to win, I would probably have stopped & place a call - if you wanted me as the LA to fix it, I would have charged appropriately for that additional service...
I'm not a judge, never have been. A judge might ding you for that particular detail, but everyone that walks by your quilt will be talking about how gorgeous it is!