Maryland Transportation Section 21-1204

      (a)      This section does not apply to any log skid, drag, or farm sled while used in agricultural or forestry practices.

      (b)      A person riding on any bicycle or motor scooter may not attach it or himself to any vehicle on a roadway.

      (c)      A person riding on any play vehicle may not attach it or himself to any vehicle on a roadway.

      (d)      A person riding on any coaster may not attach it or himself to any vehicle on a roadway.

      (e)      A person riding on any skateboard may not attach it or himself to any vehicle on a roadway.

      (f)      A person riding on any roller skates may not attach them or himself to any vehicle on a roadway.

      (g)      A person riding on any sled may not attach it or himself to any vehicle on a roadway.

      (h)      A person riding on any toy vehicle may not attach it or himself to any vehicle on a roadway.