Melody
I think Alan already knows he's married to a "hot mama." I'd hold off on telling him, unless there comes a time when he doesn't want to sit with you.
Your story reminded me of a doctor I used to know at the hospital. I was young and pretty back then. When I'd see him in the hallway, he'd stop as if to examine a piece of art. Then he'd say in an almost lustful manner and South American accent, "Hello, Miss Kathy."
Some of the other women thought he was creepy when he did that to them, but I just laughed him off. He wasn't dangerous and had no intention of harming me.
The man you met today sounded charming - not dangerous or too pushy, just complimentary. Take the tip and keep it for yourself - Score one for Melody!