The other day, I sent one of my clients a text message and immediately, I received an automated response from her stating that she was driving and she would respond to my message when she had finished her trip. This is a great tool to install on your smart phone which can be found at the Apple App Store and/or at Google Play. I've looked through the Apple App Store and found the following app, that appears to provide this service:
EasyReply Lite by Matthew Raskin
I would strongly encourage all of you to download this app, or something similar, on your smartphone. Obviously, we should not be texting and driving, as it is a major problem and studies even show that texting while driving impairs the motorist's ability to operate a motor vehicle more than drinking and driving, which is also a very bad decision while on the road.