Not only that, WAY more people evacuated than were in "mandatory evacuation" areas. My subdivision is nearly empty, and we're 50 miles from the closest evacuation area. My next door neighbor left for Austin around 9 a.m. today. I'll bet he's nearly made it to I-10 by now, which is about four miles away.
My wife picked up a couple of people and left her mom's in old Sugar Land at 0750. It took her just over 4 hours to get to Grant Road @ Jones, several miles north of 1960 going Eldridge all the way.