Liberty Mutual Insurance review: Refusal to repair my vehicle caused by their insured drunk driver

On 15 november a drunk driver insured liberty mutual hit my home, doing extensive damage to my garage and both cars. The garage is unusable due to damage (both garage doors torn off, sagging roof, bowed out wall, etc.). Their agent has refused to authorize any repairs on my vehicle until I obtain an estimate for the garage. It has been exceedingly difficult to find a general contractor due to the pandemic and that they are already behind schedule for existing projects. Given the auto damages for my vehicle are well within the amount of their client's coverage there is no excuse for their refusal to authorize repairs. I have already been the victim of their client's negligent drunk driving and being victimized again by liberty mutual' s refusal to repair my vehicle.