When you see a cop on the sidewalk, you can drive earlier him like any other pedestrian even though strolling. You can then hear all the nuts things he has to say. In Sam & Max Hit the Road, If you test to get the key figures to go upstairs in their workplace constructing, they'll say they don't go upstairs, "not since the accident". Get in a police vehicle, and change on the sirens. Enter the "Options" menu, and transform "Sleep Mode" on.