 FAKE: When Earl and Grady notice the graboid running away from them,  the seismographic monitor shows the readout from Burts truck  arriving at the refinery in reverse. This is noticeable due to the  fact that the monitor is on the floor of the truck, yet there is  daylight from a window frame behind it. Also, the object thats  supposed to distinguish their truck from the monster is normally a  solid square, in this shot its an outline; just like the monitor in  the refinery office.