By KASIE HUNT: SEABROOK, N.H. — Sarah Palin’s bus is plastered with a mock-up of the U.S. Constitution. But her entourage — both the three-vehicle motorcade that includes the bus and the smaller, two-SUV version she uses for smaller events — hasn’t been very respectful of traffic laws. They speed. They run red lights and stop signs. They make last-second lane changes to get off the highway, sometimes without signaling.....So do the reporters following them.