Here is the actual rule:
§4-08(f)(7) Pedestrian ramps. Alongside or in a manner which obstructs a curb area which has been cut
down, lowered or otherwise constructed or altered to provide access for persons with disabilities
at a marked or unmarked crosswalk as defined in subdivision (b) of §4-01 of this chapter. A
person may stop, stand or park a vehicle alongside or in a manner which obstructs a pedestrian
ramp not located within such crosswalk, unless otherwise prohibited.