"It's just bizarre, we weren't even open," Kennedy said, pointing out that the tweet was posted on Good Friday.
Fepuleai told the Herald on Sunday it was just a joke, but expressed no remorse.
Social media commentator Simon Young said making such a comment was a short-term way to gain followers, but not an intelligent one.
"I thought jokes had to be funny, it seems very strange," Young said. "It is a short-term way of thinking because it may get attention but eventually the truth will come out and, unless you have done something heroic, people aren't going to be impressed."
He said social media were "built to spread" and had a huge impact on generating points of view.
"It's selfish and nasty, it's not clever at all and it's a bit mystifying as to what he was trying to achieve."
He said a study by American social media scientist and author Dan Zarella revealed that people responded more to positive words than negative ones.
"Positive comments are more re-tweetable than negative - tweets using words like great and awesome will get more [retweets] than sucks or bad," Young said.
He said it was important for businesses to monitor social media forums to stay informed with what was being said about their brand.