Maryland Criminal Law Section 6-404
§ 6-404.
  (a)   This section does not apply to:
    (1)   a vessel;
    (2)   a military, fire, or law enforcement vehicle;
    (3)   a farm-type tractor, other agricultural equipment used for agricultural purposes, or construction equipment used for agricultural purposes or earth moving;
    (4)   earth-moving or construction equipment used for those purposes; or
    (5)   a lawn mower, snowblower, garden or lawn tractor, or golf cart while being used for its designed purpose.
  (b)   Except when traveling on a clearly designated private driveway, a person may not use a vehicle or off-road vehicle on private property unless the person has in the person's possession the written permission of the owner or tenant of the private property.
  (c)   A person who violates this section is guilty of a misdemeanor and on conviction is subject to imprisonment not exceeding 90 days or a fine not exceeding $500 or both.