Character mistake: When Barr denies giving Jeff's wife a ride, Jeff says this was in the last half hour or so - but considering the time it would take the truck to go to Belle's (5 miles away), the wife to call a tow truck, back from Belle's, then Jeff waiting extra time, then fixing the jeep, heading to Belle's, the time he spent inside, then driving along the road until he saw the truck would in no way be only a half hour...more like an hour or two at best.
Suggested correction: Jeff is obviously in distress because he can't find his wife. Is it not possible that because of the stress he's under, the amount of time that has passed is different for him? Besides, we know the wife never made it to Belle's. Later, we see she's been transferred to another vehicle.