Category filters usability

It would be better if the Category Filters worked like this:
1. Checkboxes: show in a drop down menu, rather than push the map much farther down the screen when dealing with ~50 categories.
2. Dropdown: select a category, then the map auto-shows just those stores, say in a particular city. The current way it works is wonky: select a filter, then have to enter an address anyway… entering an address would already show nearby stores. Having a drop down that works with automatically would show all the stores in the city/area for that category. We use categories for cities.