I just looked at the tires on my VS650. They are the OEM spec'd Bridgestones.
The tires are designed to be front and rear specific, but the tread pattern 'points' in the same direction for both wheels.
There may be tires with the tread pattern going in opposite directions for front and rear tires, but I dont know why that would be?
Maybe because the front is only used for braking and the rear is for both braking and acceleration?
I would think the water shedding property of the tread would be in one direction, and would be the same for both tires.
to answer the original post question: your tire is on backwards.
Unless you ride in the rain frequently, I would not worry about it, and I (personally) would not pay someone $70 to take the tire off and turn it around.