The van carrying Doug, his best men, Nadia and the dog to the hospital after the bachelor party mishap are pulled over by a police officer. The driver of the van puts the van into reverse and smashes into the front end of the police car, causing apparent damage to the front end of the car. In the next scene, there is no damage to the police car.
In the football scene between the groomsmen and old guys; after the first touchdown, the Father-in-Law shouts "touchdown, 7 to nothing." There was no extra point attempt or field goal. It was only 6-0. However, most pickup football games don't abide by the textbook rules of football (fewer players, less equipment, smaller fields, etc.) and thus it can be assumed that traditional scoring was also altered making the extra point automatic.