The mat is done up to the front seats, and that might be as far as it goes. No noise will come up thru the seats, and there will be a center console covering the tunnel, and the floor mats will cover the footwells.
UPDATE:
If I had known about it at the time, I'd have used
Peel&Seal roofing from Lowe's, which is the same as this Dynamat, at a fraction of the cost.