PORT MONMOUTH, N.J. — When Chris Christie started to talk over a complaining questioner, a signature tactic of the bellicose, pre-scandal governor, the audience here briefly turned on him.

“Answer the question,” some shouted.

When he took a microphone from a long-winded speaker, the man startled Mr. Christie by snatching it right back.

And when he singled out a young woman as his inspiration for repairing the Hurricane Sandy-battered coastline, he failed to grasp that the girl’s mother — sitting just a few feet from Mr. Christie — was angry with him for not doing enough.

“He’s full of it,” she said.

For the embattled Mr. Christie, bogged down by scandal and dogged by investigations, Thursday was supposed to represent a defiant, maybe even triumphant, return to the town-hall-style meeting, an intimate and comfortable setting in which he could bathe in the adulation of his fans and unleash harsh denunciations of anyone foolhardy enough to challenge him.