The Yomiuri Shinbun reports that a law regarding illegal parking will go into effect soon:

With the revision of the Road Traffic Law, enforcement of parking regulations will be drastically changed from June 1.

Under the revised law, police will be allowed to outsource enforcement of parking laws to the private sector, and 270 police stations, or more than 20 percent of the police stations nationwide, plan to delegate all or some of their parking related tasks to the private sector.

Gaijin drivers beware!   Gone are the days of parking anywhere you want, with the worst penalty being a polite note on your windshield asking you to please not park there in the future.  You might actually get parking tickets now!