Well if its digging in the arena then my assumptions are that itll either lift half of your wheels off the ground (because of all the force pressing down on it etc.) OR youll have so much frictional force at the point of your wedges contact that it would become very hard for you to overcome it and drive away (or at least take the time for you to raise the wedge).

With this in mind, I could try for a side assault in order to make you lower your wedge into the ground, and once youve done so immediatly swerve around to the back and get under that (Assuming these wedges are not on all sides.)