Have another menu (similar to the "!") where you can select an interim destination along your route by category (for gas, food, stores, etc.) that would then pop-up the closest businesses in that category. There would be an advertising opportunity to allow the business to display their brand icon or maybe even in bold type. Selecting a busines would route you to the business and then route you back to your original journey.
Have another menu (similar to the "!") where you can select an interim destination along your route by category (for gas, food, stores, etc.) that would then pop-up the closest businesses in that category. There would be an advertising opportunity to allow the business to display their brand icon or maybe even in bold type. Selecting a busines would route you to the business and then route you back to your original journey.