Sticky situation. Warranty job - customer has never been here before. We diagnose a leaky injection pump. We order the pump and before it arrives, the "customer" takes his truck to another dealership, who happens to have the part in stock, and has it installed there. We knew nothing about this until we call him and tell him the part has arrived.
The parts department doesn't want to keep this high dollar ($650) part in stock but if they send it back, they get hit with a 25% restock fee ($161).
What is the best way to handle this?