I enjoy the humor of the signs. I am truly amazed (I guess I really shouldn't be) at the number of people I see texting (or potentially just check their phones with other activities/social media/etc). At any given stoplight, I can look around and at least 1/4 to 1/2 the people can be observed looking down (granted, they are stopped, but often times I'm behind them and they sit at a green light).
Similarly, I have been passed on the interstate (I drive about 75 in a 70 mph zone) by people with their hands on wheel holding their phones texting as they drive. Of course, just last week, I passed a gentlemen driving down the road and he had what appeared to be a manual of some sort on the steering wheel while he was driving - so it doesn't even take electronic media.
I've talked with some of my coworkers, and they admit to texting while driving - usually, just because they can. I urge them not to. I tried it one time, just to see if I could, on my 1/2 mile long dead end road. I couldn't stay between the ditches. I rarely even talk on the phone while driving, mostly just because it's annoying to me.
Enough of my soapbox message.
Good luck and take care.