I think a more correct analogy than a "sushi bar" would be a Shinto Shrine in Hawaii during WWII.
The Hawaii Kotohira Jinsha-Hawaii Dazaifu Tenmangu is a Shinto shrine established in 1920 in Honolulu to perpetuate Shinto traditions.
Fast Forward to WWII...
By 1941, annual festivals were being celebrated for all three shrines; Kotohira Jinsha, Shirasaki Hachimangu and Otaki Jinja, with an ever-growing membership of over 1,200 families. However, the Japanese attack on Pearl Harbor on December 7, 1941 threw the whole nation into turmoil. In the worst abuse of government authority in the history of the U.S., more than 120,000 Japanese Americans were interned in relocation camps. Issei leaders of the community in Hawaii were immediately rounded up and sent to internment camps on Sand Island, Honouliuli, Maui, Kaui, Lanai, Molokai, the Big Island and the Mainland.
All religious and cultural activities were terminated as the war continued. In 1943, the interned Rev. Isobe was deported to Japan, forcing officers to call a special meeting on July 21, 1945 to decide the fate of the shrine. Kotohira Jinsha officially announced the temporary closure of the shrine and its activities on April 6, 1946.
After the war, members enthusiastically restored shrine activities on December 31, 1947, despite the absence of a priest. However, the shrine faced another crisis on June 8, 1948, when its property was seized by the Federal Government. An emergency meeting was called and a special committee formed to initiate measures for the return of the shrine and its property.
On March 4, 1949, an announcement for the sale of the Kotohira Jinsha property appeared on local newspapers. The shrine immediately solicited the services of the law firm, Robertson, Castle & Anthony and filed a suit on April 4, 1949 against Attorney General Tom C. Clark, the State of Hawaii and the Federal Alien Land Office.
The case was heard in District Court on May 18, 1950 with a favorable ruling for the shrine. Kotohira Jinsha was once again able to continue all activities at their property in Kapalama. Members jubilantly celebrated the Autumn Thanksgiving Festival on Sunday, October 29, 1950, nine long years since the last festival in 1941.
From www.e-shrine.org
So you see no big deal...right?