Last I checked the Bear Republic was annexed into the Old Country in 1846; I'm pretty sure it would have made the news here if[0] it had recently left[1].

[0] hint: NAVBASE San Diego[2] makes this scenario[3] highly unlikely.

[1] thereby becoming an emigration possibility

[2] not to mention a few other facilities

[3] RF former President Medvedev's opinions notwithstanding