Vicky relays a report that the locusts attacked an "...amusement park on I-43". Interstate Highway 43 runs south from Wisconsin, nowhere near Idaho.
The terrain shown at the end with the caption "Near Lafayette, Indiana" is not typical of that area of northwest Indiana, which tends to be very flat except on the banks of the Wabash river. The immediate Lafayette, Indiana area also is mostly urban and not as rural as pictured.