Yes, that's the way It was done. I can take some photos in the morning. All they'll show though is the plug and then another with the eye bolt. Had I known the concept would be as useful as has been I likely would have put in some more. Not that I at least for now, have needed them, but ....
Another thing I thought about too late was to have pads poured with thicker concrete for the future car lift. Also, should have had a reinforced beam installed for a hoist. Since then, one has been installed but reinforcing the beam and having to use portable and adjustable posts for added beam support is a hassle.