Md criminal 4-203, the law I linked above, allows unloaded and Holstered firearms to be transported by unlicensed individuals, in lieu of a case, as long as they are traveling to one of the few approved destinations (home, business, place of sale or repair), or approved activity (dog training).
But, do not expect law enforcement to be aware of this exemption, and do expect a lengthy interaction with law enforcement if it is discovered.
The holster requirement for transport does not apply to licensed permit holders.
But, do not expect law enforcement to be aware of this exemption, and do expect a lengthy interaction with law enforcement if it is discovered.
The holster requirement for transport does not apply to licensed permit holders.