Is a Johnson AGM starting battery fully charged at 12.68v???

I did that when I bought my used telecoms. Feel kind of dumb but I didn't think about it when buying new.

I did call around and find the newest by date AGM in town.

Other times when I have bought new batteries, shops always top charged them before bringing them out. This one I had someone else pick up for me, so I don't know if that was done.

But it seems like it might be difficult to get someone to let me put a voltmeter on before they top charge it. Plus, how would I know?