Not exactly the same, but kinda similar for me. My wife and I qualified here in NY. However, our appointments were me at 11:00 am, and her at 2:30 pm. We went to Batavia for the J&J vaccine. I showed up, and we asked if she could also get hers at the same time. No problem. They said as long as she was scheduled for that day, she could get it with me. When we went to show the workers our paperwork (since we're about 10 and 12 years under 65), they were like "We believe you, no need to see anything".