ALF resident out for the day without meds

I have a resident who's family takes them out for the day on the weekend, but hasn't been taking her meds with them. I work 2nd shift so, I found out they doesn't have the meds when I come on. I spoke with the family member and said that the meds should go with the resident. I was told by the family member that they had been told they didn't need to take the meds with them, that the meds would be given when the resident returns. The resident doesn't usually return until 8-9pm. So they haven't had any of their 5pm meds, which included oral diabetic meds.
Where does that leave me? It's my understanding that since it is so far past the ordered time that I can't give the meds. Can a med be given that late if it's only a once a day med? Is it a med error? Who's error? If I give the meds am I out of compliance, if I don't give the meds am I out of compliance? Is there any lead way for discretion in this situation? Is it a black and white issue or is a gray area?
Thanks for any input.