This was the second time he had to tell fans to stop calling and even explained to fans that these prank calls are obstructing his business and prevents actual customers from making reservations. If this continues, Obi stated that he has no choice but to close the shop. He also explains that banning the fans from the restaurant and closing the restaurant would be simple, but he doesn't want to resort to that. He concludes that he'll take a brief vacation, and should conditions not improve, he will delete his Twitter account.
As of this writing, it seems like the actor already deleted his Twitter account. It is unknown if he has closed his restaurant.
[Source: Livedoor via Sankaku Complex]