Is this an angle shoot?

[SpeciesFlora]

1/2 NL at the MGM Grand:

Guy who was clearly new to the game limps in early position, action folds to me. I have been playing a lot of hands and raise to $12 on the button with A-7 os. SB calls, BB folds, limper calls.

Flop comes J-8-3 rainbow. Two checks and I bet $30, SB folds, limper thinks and calls. Turn Q, check, check, river is a 2.

Limper reaches for his stack and then takes his hand away without grabbing any chips. He is thinking for a while and I'm putting him on something like A-8. I want him to check so I can make a decent bet that I think he will fold to, so I ask him if he has a pair of 8s.

He shakes his head looking very perplexed, so I tell him, tell me what you have and I'll help you out.

He tells me I was close, so I say, "pocket 9s? pocket 9s no good" To which he immediately mucks. I didn't show, accepted the pot and tipped the dealer $1.

Obviously I didn't think he would open muck, I was only trying to induce a check. What do you think?