Public Enemy has turned public friend #1 for their performance in the District. Tomorrow night, Long Island Music Hall of Fame inductees, rap-rock progenitors, and occasional television mugs Chuck D and Flavor Flav are playing GW's Lisner Auditorium – where you can advance to the front of the house for the price of admission plus a winter coat. If that deal's not enough, you can also catch PE playing on a flatbed truck as, starting at about 7:45 p.m., it winds its way from 18th & G Streets NW to the Lisner a few blocks away. The Post's Chris Richards notes PE's route, rendered above in glorious Googlemap.