Chill out and allow for extra time?? No one allows for 4 to 7 hours extra time!  How about calling the tow trucks as soon as the accident is reported rather than after the investigation?  At least according to this article that is what's done is they wait until the investigation is done before calling tow trucks and then wait for them to fight their way to the scene.  That seems stupid to me.  Most police do not care how many people are held up or how long they are delayed because it doesn't really affect them at all.