Md. Code, Business Regulation § 10–320

(a) Except as provided in subsection (b) or (c) of this section, a retail service station dealer who reduces the price of motor fuel for self-service shall provide, on request, fueling service at the self-service price to a disabled driver who displays a disabled person’s registration plate or parking permit issued by the Motor Vehicle Administration.

(b) This section does not apply to a retail service station dealer who sells motor fuel from:

(1) a convenience store that:

(i) sells motor fuel through remotely controlled dispensing equipment; and

(ii) does not provide fueling service; or

(2) a station that:

(i) is exclusively self-service;

(ii) is operated by 1 cashier; and

(iii) has remotely controlled dispensing equipment.

(c) This section does not apply to a disabled driver who:

(1) is reasonably capable of providing self-service; or

(2) drives a motor vehicle that carries another individual who is reasonably capable of providing self-service.

(d) A retail service station dealer who violates this section is guilty of a misdemeanor and, on conviction, is subject to a fine not exceeding $25.