You should send the photo to Lt. Nick Breul (discussed below in a chat with Dr. Gridlock). Unfortunately no email address was given but I posted a comment on the site asking for one (http://dcbac.blogspot.com/2011/11/dr-gridlock-chat-11-7-11.html)
Regarding the question about the Metropolitan Police Department (MPD) enforcement of bike lane infractions, contact Lt. Nick Breul of MPD’s Traffic, Safety and Specialized Enforcement unit. Lt. Breul met with the D.C. Bicycle Advisory Council Wednesday, November 2 to discuss the District’s efforts regarding educating police officers and bicyclists about the laws involving bicycling.
Lt. Breul’s unit issues directives to District precincts that deal with specific enforcement (seatbelts, speeding etc…) and makes decisions on where enforcement should happen (based on traffic information). MPD is working with the District Department of Transportation to educate officers about bike laws and their correct enforcement. Lt. Breul is hopeful that MPD, with improvements in education, will be more attentive regarding the ticketing of vehicles parked in bike lanes as well as the understanding of bike laws in general.
In addition, the public is encouraged to contact the Office of Police Complaints, which recently issued a report that encourages better communication to improve the relationship between the MPD and bicyclists, if they have concern about or are subject to police enforcement (or lack thereof) with regard to bike laws.