Confused About Auto Accident Repairs?

I am so upset--getting my car fixed from the wreck has become a HUGE hassle. To start with, who can think straight after an accident--so I had nothing to suggest when they told me where they were taking my car. Next thing you know, it is in a "storage yard" and they are charging $55 dollars a day for storage,. The adjuster wants to repair with used parts or foreign parts instead of those from my own manufacturer.fighting through the collision repair process after an accident. It is bad enough to have your life disrupted, and perhaps injuries to deal with, but when things go sideways with getting your vehicle restored, then the whole thing can be, as Sarah described it--"a huge hassle". First, she was smart to get her vehicle out of the storage yard because the adjuster was only going to pay four days of costs, and then she would be responsible at $55 a day;If this were a serious accident, then diminished value means that even after complete repairs, the market place could show a reduced value for her car versus one the same age and mileage that has not been in an accident. and hence a lot more likely to have gone along with whatever repair shop he suggested to move the car and stop the storage costs.I have a 2003 Chevy Impala with lots of extras and I want it to be restored to pre-accident condition."Approved Shop" or the like. These are licensed by the insurance company to write estimates that automatically become approved work orders. This process is part of a cost-saving and convenience (for the insurance) setup known as DRP: Direct Repair or Referral Program.The debate here is likely between use of Original Equipment Manufacturer (OEM) parts versus "Aftermarket" parts, "Like Kind and Quality Parts", or "Quality Replacement Parts", all as touted by the insurance industry.Thus, insisting to use brand new OEM parts on an older car could be considered "betterment" for significant parts, wherein the consumer will owe the insurance company because it improved the vehicle from its pre-accident condition.
I can already hear the adjuster telling her that he is cutting off the rental authorization because if she had stayed with his "preferred" shop the job would have been done in time. Sarah must reject that argument and point out that the rental car should continue through the repair process, including reasonable delays for parts. These delays would be within the ambit of what we call the consequential damages of the tortfeasor's negligence.That means FUNCTION (do all systems work?), APPEARANCE, SAFETY (restored to manufacturer's standards), and VALUE (no diminution in value).