odd hand, first time poster

Long time lurker, first time poster. I had an odd hand come up today at Stars 2/4 SH, and myself and a friend had quite a long discussion about it. I thought I would post it here to see what everyone thought.

UTG and UTG+1 seem to both be typical loose, terrible players. I've played perhaps twenty hands at this table with them, and they have both been in a fair number of them, all the way to the river. UTG+1 just lost a hand to me where he check-raised middle pair.

The button is 12/9/3.5 over 150 hands, no further read.

I am on the BB with Jd8d. UTG and UTG+1 call, CO folds, and the button raises. I call (wrong?). UTG and UTG+1 call.

The flop comes QcJh8h. I check, anticipating an auto-bet from the button, intending to check-raise to punish any draws UTG and UTG+1 might have (wrong?). UTG bets, UTG+1 raises, button 3-bets. I decide to cap. My rationale is this: with two pair, I'm probably ahead. I still want to punish any draws, and put more money into the pot while it seems that I still have the best hand. My plan is to bet/fold the turn.

So, thoughts? Was this a horrible play and a really clear fold, or was there value in capping?