I was told verbally, very deliberately, and also the leaflet for the jab made a big play for this. I didn't get a similar warning for my first two, AZ, and my wife didn't get this for hers, Pfizer, so it made me take note.
The fact they made a big point about it surprises me that nothing was said to your hubby. Maybe the person he was dealing with had been there so long they had become bored of the routine and had given up with repeating the same lines? Pleased all was well though