Thanks for your encouraging comment. We'll see.
It was something that I felt as if I had to at least try! :) Experiments, you know?
I will probably try it, and other similar things again... ;)
While I didn't feel as if I was in any danger (the median is pretty wide, and on at least one side bordered by the very slow left turn lane) my wife had a similar concern when I told her (after the fact, of course!)
You could order custom car magnets that are large you could stick to the sides of your car. Like the doors or the hood-trunk. That way as you drive around town, park at the grocery story, etc. you are constantly advertising. Kind of like this. Safer and less work for you.
Great thoughts, Thanks! :) :D