New Taxi Fares

There is no bus/combi that passes in front of CM. To the best of my knowledge one can only take the Ixtapa bus to the street behind it.

All of the half-dozen different Coacoyul combis go round Plaza Kyoto and then on to stops along the service road of the main highway. Get off there, just a couple of minutes walk to Comercial.
Going from Comercial back towards Plaza Kyoto is more complicated. You'd have to walk from Comercial out to and across the highway to catch a Coacoyul combi that would take you into Centro, then another Coacoyul combi to get back to Kyoto.
Makes more sense to walk to Comercial, (if physically possible), then taxi home with your groceries.
There may be easier ways to get near Comercial using the combis that go down the other side of La Boquita, (El Embalse?) but I've never tried that route.