Cops Catch Pap With Concrete Evidence

The paparazzi got into it with the LAPD last night after police cuffed a photog for stepping off the sidewalk -- a death penalty offense in 34 states.

Photogs started screaming at the cops, yelling things like "What about DUIs?" and "We're arresting people for jaywalking now?" The pap was not booked.

BTdub -- the whole thing went down across the street from Eva Longoria's new restaurant, Beso.