This might be the one that AreBe is talking about, but there's one across from the Twin Lakes development on McCrimmon Parkway as well. (I think the name on the side of it is "Esmaralda") The times seem to vary, though.
Follow the new home construction. Two or three line up on Carpenter Fire Station Rd just east of Durham to Green Level Rd, sometime before noon. Haven't sampled them myself.