Yes, the father said she went to the store that evening to get candy and soda for the kids - but he didn't say what time that evening.
And we have detective Rod Wheeler on O'Reilly saying the Durham PD knows where she was before going to the Buchanan house and that she was intoxicated.
So maybe she did go to the store, but that was much earlier, maybe even before the kids' bedtimes, and doesn't shed any light on where she was during the 2-3 hrs. before the lacrosse players' party.
The father said he drove her to the store.