When Paul kidnaps Teresa and threatens murder/suicide the tank truck that refused to help Chris is seen right in front of them but Paul manages to barely misses it preventing the murder/suicide. This wouldn't make sense because the tank truck had already passed them and Chris before Paul had threatened murder/suicide and it was going the other direction.
When Teresa's Mom Wanda is seen paying for her groceries at the 24 Hour Grocery Store in Norman Oklahoma the cashier who checks her out is only seen from her back and looks like Maria Pitillo the actress who plays Teresa to which it might be and she was not shown as to not confuse the cashier with Teresa who was at home asleep in bed at the time when Paul broke in.