Pretty much any search mechanism relies on straight line mileage for general results. Even Google Maps. Actual mileage is subjective. If you rely on mass transportation what takes your neighbor 15 minutes to drive 8 miles too might take you an hour to be driven 25 miles too. Another neighbor may work next door to the target so consider the target a minute to walk too.
Very few schedulers have time to plot out the potential travel routes for each individual shopper on their list. As a shopper, be patient and understanding, gather the necessary information to make an informed decision. If you come across as harsh or not understanding with schedulers, they will avoid you eventually.
My posts are solely based on my opinions and for my entertainment, contact a professional if you need real advice.
When you get in debt you become a slave. - Andrew Jackson