For the record, Dustin was very helpful and resourceful. There was another guy that put up with my stupid mistake of brining the wrong size tire as well.
I was charged $25/wheel WITHOUT the N2. Was originally quoted $18/wheel without N2. They charged me $5/wheel extra for having TPMS.
And I dunno...I have mixed feelings about this shop. Hate to rate it low just because of one person when the others were nice to me.