You are a local business, you need a specific audience to get your target customers. But what if you target everyone in your local area?
Yep, time to create an ad with no "interests or demographics" with nothing but your local area.
You can target everyone like this with eye appealing video or pictures to get them to your website. You then use your facebook pixel to gather all the data and create a "look alike audience" that matches the interest of the people that visited your website. If you dont do that well then you can just create an ad that retargets the people that visited your site.
This is a very effective strategy to just get your website out to all of your local people and the retarget them with a later ad that has a defined audience!