This isn't a bad idea most expecially in a society that has adopted Bitcoin fully as this can go a long way to create more publicity and aid local Bitcoin adoption to a very extent.

But if Bitcoin hasn't gained an high level of acceptance in your region, then it's definitely not the best thing to do yet as it could attract unnecessary attention from some agency that might regularly visit such location to carry out assault on bitcoinner. Seems you guys already have systems that are working too well for you already and that's just a perfect way to go about this. Create a good social media page that's going to be very active and functional and from the reviews and responses you will get from followers that are engaging in those handles, it's going to be easier to create a good feedback on the level of Bitcoin adoption you're experiencing in your region.