(b) (1) “Engage in the business of an out-of-state vendor” means to sell or deliver tangible personal property or a taxable service for use in the State or a digital product or digital code to a customer tax address in the State.

(2) “Engage in the business of an out-of-state vendor” includes:

(i) permanently or temporarily maintaining, occupying, or using any office, sales or sample room, or distribution, storage, warehouse, or other place for the sale of tangible personal property, a digital code, a digital product, or a taxable service directly or indirectly through an agent or subsidiary;