What Would You Do?

I played the other day in the clubs new $50+10 tournament. It was frustrating as usual. I had had a great run for about a month, leaving with 2-3x what I bought in at consistently, but recently, the poker gods and my own misplays have been costing me.

But in this case, what would you do?

500 chips to start. Up and down for about 40 minutes and I am sitting on about 440 with the blinds 10-20.
I am in the BB with Qs+3d. 2 players in and I check. 10h was exposed on the deal.

Flop comes Ks+10d+10s. Check all around. turn is the 3s. SB bets 65, I call with my spade draw and small pair. 3rd player doubles the bet. I call, putting him on a K or maybe a 10 but figure if the spade comes, I am good. 6s comes on the river making my flush. I am first to act and push all in for about 300. Let me first say that the other player in the hand seems a little green. I have never seen him at the club before and he is not on top of all the etiquette. So, to continue,
he flips over his cards, without saying anything and then pushes his chips in. I initially thought it was a fold. Then I look down and he is holding K-10 for the boat. I am sitting there, waiting for the dealer and he pushes him the chips. Another guy at the table says that his hand is dead as he did not make the verbal call or push his chips in before turning over the cards.

I get up and tell him, 'I thought you were folding, but you had the better hand and I don't want to be a prick about it.'

I figured it was a tiny buy-in, he did not know the table/tourny rules and as well, I had been up for 35 hours straight and my heart was not in it. On the other hand, I technically won the hand when he showed before committing. For a bigger game/bigger stakes, I would have made a fuss, it just did not seem worth it on this one.

Would you have done the same?

-$60