You can always try to show them the attached excerpt from the Service & Warranty manual. They'll still claim they will wait for the key to call for it but worth a shot.
08 E90 | Jet Black / Black | 6MT
Mods: RAC RG63 w/ Pirelli Corsa 255F/285R | Akrapovic Evo Exhaust | OEM Blacklines
Winter Setup: OEM 18s w/ Nokian Hakkapeliita R 245/40-18