Inappropriate (?) Compliment

I was out for my walk today, and I saw an elderly neighbor toddling out to his mailbox with his cane.  As I approached him, I popped my earbuds out so I could say hello.  Keep in mind, I've never said more than, "Hello," to this man.  In fact, I've probably only waved before.  And he was old.  Like walking with a cane old.

He turned to me after I said, "Hello," and he said, "Say, that walking is helping you!  You're looking gooooooood!"

Ummmm....thanks?

I mean, it was a compliment, I'm sure, but it was inappropriate on so many levels.  Like, I don't know this person at all.  And there's an implied, "You looked like hell before," in comments like this.

Whatever.  Apparently I'm looking goooooood.  Might have to step on the scale soon.