Breastmilk gone bad?

Hi ladies,

Looking for advice - yesterday morning I pumped a bottle for my husband to feed our son while I went to run some errands and have me time.

When I left, my son took a nap and didn't wake until I got home. I pumped in the morning at 6am and had the bottle in the fridge until 1:30pm. We took the bottle out to let it warm up to room temperature incase my son needed to feed. But as mentioned, he slept the entire time until I got home at 4pm.

The bottle was still left out but it was actually still fairly cold. I immediately put it back in the fridge to keep it cool as I didn't want to waste it. My MIL is watching our son tomorrow while my husband and I go out together. I was hoping to use that bottle for their visit.

Do you think it will be okay or did I spoil it by letting it sit out for 2.5 hours?