No no no no, I won't have it, you can't eat pho and banh mi in Hong Kong, it's cutural appropriation of the most oppressively imperialist kind.
Pho should only be eaten in the shophouse in Ho Chi Minh City where the Tet offensive was secretly planned. If you're lucky, after your lunch the Mama-san will take you upstairs to show you the plotters' room as well as the chair Uncle Ho sat in when he visited after the war.