Wallace, Ouch! Sorry to hear it's so expensive. Do you have homeowners insurance? Since it happened in your driveway you may be able to file a claim there. By the way, when this happened to me, the damage was only $4k I think, though BMW picked it up. Do you have another dealer nearby you can take it to for a second opinion?
2008 535 Wagon - Monaco Blue / Black - All the goodies plus JB4