(a) This chapter does not apply to private warehouses or the issuance of receipts by the owners or managers of private warehouses.
(b) This chapter does not prohibit a public warehouse operator from issuing the same types of receipts as issued by a private warehouse, provided that the faces of the receipts are plainly marked with: "not a public warehouse receipt."
(c) This chapter does not apply to a producer of grapes who stores in a warehouse owned by the producer grapes produced and owned by the producer.