Md. Code, Business Regulation § 5–502

(a) An alley, canal, road, or other public thoroughfare may not be opened through property of a cemetery if that property is used or to be used for burial.

(b) This section does not authorize a registered cemeterian, permit holder, or other person to obstruct:

(1) a public road in use when the cemetery is formed; or

(2) the site of a future public road that, when the cemetery is formed, is shown on a plat made by authority of the State, a county, or a municipal corporation.