This is crazy. While the pull-overs have been reviewed and found to have been legal and justified, something doesn't sound right with how the officers are aware that these people have CC permits. It almost appears that they're being screened, even if the officers swear up and down that they aren't. That bit about the cops smelling marijuana...that sounds like a fabricated reason to pull someone over to try to find a weapon.
This is another reason for me to avoid Maryland...never really liked that state, but this is a legit reason to stay away, IMO.