Prince George’s County, Metro Transit and University of Maryland police all responded to the incident.
The proposal also increases support for education.
The activists have five demands, which call for transparency and a new department administration, among other things.
Officers responded to the report just before 10 p.m. Monday.
The driver exposed himself after parking his car.
County Executive Angela Alsobrooks announced the changes at a Friday press conference.
The department’s criminal investigations unit is investigating this incident.
The bill raises concerns that there is no "defined mechanism" that allows student input about UMPD.
The incident occurred Monday evening.
The department’s policy prohibits posting police department badges, logos or uniforms.