The grade is WRONG imho, even if there is a minor wrinkle that you have not yet been able to locate under 10x loupe (You may have to hold the card at an angle.).  PSA gives 6s to cards with minor wrinkles.  This is simply an obvious mistake.  They should re-grade at no charge.
JimB
P.S. Larry, you can unlock the UPPER CASE with the button on the left of your keyboard.  
