When Jax follows Mr. and Mrs. Petrie to the flea market, you can see a yellow tape with the words "Caution - Cuidado". In Belfast, it would be in English only.
While Jax follows the couple through the market, you can see two different red hats being worn by Able - One very plain one pulled low and even, and the other loosely fit on his head with prints on it.
When Jax first appears in the market whilst following the couple with his son, you can clearly see an LAPD police officer in the background.
Indoor shots, supposedly in Belfast clearly have North American style Electrical outlets, rather than the larger UK sockets.