She bought a 1963 Stratocaster on the phone. But there is a brief scene where you see the back of the head stock. It says "Made in Mexico." Strats were not made in Mexico until the 90s.
Isaach De Bankolé plays a character named "Roscoe", and according to the movie he is named after a small town in upstate New York. This implies that he's a NY native, though he speaks with a reasonably-thick African accent (the actor is from the Ivory Coast).