Md. Code, Alcoholic Beverages and Cannabis § 2–309

Subject to § 2–310 of this subtitle, the sale and delivery of beer or wine from a vehicle under the exclusive control of a holder of a wholesaler’s license constitutes sale and delivery from the wholesaler’s licensed premises if the beer or wine is:

(1) beer previously purchased by and delivered to the holder of the wholesaler’s license; or

(2) wine or a wine–based beverage with an alcohol content of 6.5% or less by volume.