Answer
The friction force on the crate points toward the north. The friction force is not zero.
Work Step by Step
Since the crate moves without slipping, the force of static friction is causing the crate to accelerate at the same rate as the truck. Since the crate is accelerating toward the north, then the friction force on the crate must point toward the north.
Since the crate is accelerating toward the north, the friction force on the crate is not zero (otherwise, the crate would not accelerate).
