Newport Beach police arrested a man in the early morning hours of Tuesday on suspicion of driving under the influence.  According to reports, the man was driving northbound on East Coast Highway when he drove his Escalade onto the curb, knocked over a parking sign and crashed into a brick planter before proceeding back onto the road.  He then continued another block before again jumping the curb, destroying another parking sign, sideswiping a palm tree, hitting a bus stop bench and coming to a stop inside a Corona Del Mar business.