An 'image play' in a won pot

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This is a play I've used today a few times. I wonder if it's in anyone else's arsenal. You're against a relatively poor player who draws too thin too much. You are pretty sure he's on a draw and won't call any bets on the river. I thought this might get under his skin a bit, confuse him or something else.

Paradise 50NL, 5max. I cover with $65 or so, Villain has $48 in SB.

Preflop, I limped w/ A2s, button limps, blinds are in.

Flop A25r. Checked to me, I pot, called by button and villain.

Turn is a Q, checked to me, I bet 1/2 pot, button drops, villain calls.

River is another ace. Villain checks and I push.

Due to a few factors I felt certain villain had no hand - probably a missed gutshot or something else that is not paying off a VB. He was very loose, poor, and liked to minbet or blocking bet marginal holdings while check-calling draws. He did the slow-check on the river.

Basically, do you ever make a push like this to confuse or irritate an opponent when you know you won't get paid? Obviously only against a very poor player, but that's who I was up against.

NT