If I remember correctly, the phrase was, “Lock your car. Take your keys. Don’t help a good kid go bad.”
I live in rural, bible belt Missouri and could leave the keys in my vehicle and technically I do but I toss them in the console. The exception is when I go to walmart.
Yep, that was stupid campaign.
We have a problem here in Winter. On cold days some people like to start their car to warm it up and then dash back into the warm house. The cars are called "puffers." We don't have Linus's walking down the street only see a puffer and turn into a "bad kid." The problem is bad kids ("teens" anyone?) cruise residential neighborhoods looking for puffers to steal. So, the takeaway is if you want a warm car stay in it and catch up on texts or emails while it warms up. Otherwise you are vulnerable to the thieves who cruise the neighborhoods.