Md. Code, Courts and Judicial Proceedings § 5-524

An owner or lessee of any motor vehicle registered under Title 13 of the Transportation Article may not raise the defense of sovereign or governmental immunity, to the extent of benefits provided by the security accepted by the Motor Vehicle Administration under § 17-103 of the Transportation Article, in any judicial proceeding in which the plaintiff claims that personal injury, property damage, or death was caused by the negligent use of the motor vehicle while in government service or performing a task of benefit to the government.