Ask HN: Any startups try roadside signs for exposure

I am trying different channels for exposure. One that I am now considering is small signs by the roadside. You see the political little signs in the USA now saying 'Vote for XX' - similar to this.

One problem I see is that my product https://toonclip.com is an online animation editor and is not 'a local product', so not sure about the effectiveness of this method.

Anyone, experiment with this? Any feedback?