I don't think your concern is unfounded: Tas is right - we have some pretty ridiculous lawyers here. Some even get off on defending the bad guys (Seen "Thank You For Smoking?") On one hand I wouldn't expect anyone including the police to really notice a small EM sticker seeing as I got stopped by the police the other week and they were LOOKING for things to peg on me and didn't even notice I had one windshield wiper. They let me off (I guess I ran a stopsign???) Anyway, I worry a little bit, especially around town where if you have very noticeable modifications like my wheel skirts. People start to recognize your car if you have an unusually memorable attribute. I think about if I happen to piss someone local off with my driving that it would be easy for them to recognize my car in a parking lot ("hey, this was that jerk that....!") and vandalize it. The same line of thinking goes with someone who notices the mods, wonders why the blazes you have them, moves their eyes to the sticker, and says AH-HAH. I worry, but I still think it's pretty unlikely. The benefits of promoting EM outweigh the risks for me. Don't feel bad if you feel better with the sticker(s) off.
This talk about suing god (which is a great satirical gesture on our sometimes ridiculous legal system) reminds me of the
Church of the Flying spaghetti Monster, linked for anyone who hasn't heard of it.