@a997 :
We run an insurance adjustment business and often after leaving a client's home will pull over to either take a few notes, enter something into the computer or make a call. Could sit for 20 minutes easy. Better to pull over in a neighborhood when it's all highway and no large shopping center etc to pull into.
I'm just saying a lot of people are just minding their business, doing their day.
It's good to be aware, but please be careful approaching strangers cars. Sometimes they may think you are up to no good since they have no business with you. Or they could be the bad guys you don't want to know you.