April 28, 2011 12:50 am Copy Cat App The red-blue flashing lights you see in your rear view mirror might not be the police. Menlo Park police arrested a man they say used an emergency sirens app to impersonate a police officer. US & World Videos 2:00 Families, activists rally amid ongoing Antioch PD racist texting scandal 0:41 Glide Memorial Church honors Rev. Cecil Williams 2:22 Pro-Palestinian protests continue to grow at Bay Area universities 2:24 Pleasanton community gathers to remember family of 4 killed in crash 2:18 Workers' Memorial Day: Bay Area community honors those who lost lives on the job