Md. Code, Transportation § 21–1206

(a) A person may not operate a bicycle, an EPAMD, or a motor scooter while carrying any package, bundle, or other article that prevents the person from keeping both hands on the handlebars.

(b) A person may not carry on a bicycle, an EPAMD, or a motor scooter any package, bundle, or other article that interferes with the view or balance of the operator.

(c) A person may not remove, ride on, or tamper with any part of a bicycle, an EPAMD, or a motor scooter without the permission of its owner.