As far as I can tell, it's not an NDA to have your car fixed. The New York Times article omits some details from the original Daily Kanban article, giving a sli

As far as I can tell, it's not an NDA to have your car fixed. The New York Times article omits some details from the original Daily Kanban article, giving a slightly different impression. Based on the original article, the NDA appears to be attached to a discount on out-of-warranty repairs.