Per a post upthread about CVS closing early on that Monday.
The Delphi CVS closes between 1:30 and 2pm every day for lunch. Note that next Tuesday is a national holiday, hence them showing they are closing at 2pm this July 4th (I'd have to check hours when there isn't a holiday in a few days to prove that). The day the girls were murdered was 2/13/17 which was a Monday. It was Valentines Day eve, which is not a holiday that a store would close early for IMO.
So I'm thinking they did as their hours state... Open from 8am - 1:30, closed (for lunch) until 2pm, then open until 9pm.
View attachment 432001
Source (This is specifically for the Delphi CVS in the event other areas have different hours. I cannot control the way the link comes across, but in order to see that it's indeed Delphi I had searched for, click on your Escape key after you go to the link. Then you'll see that it's Delphi):
cvs delphi indiana - Google Search