This is a fairly simple problem to manage though. The computer shouldn't say "no", it should say "This trip isn't fair on our drivers because the standard fee doesn't cover the costs. Would you like to pay the extended distance fee or cancel this job?" It'd still put some people off, but fewer than you'd think. A lot of people want to be ethical when they're buying things.
An extended distance fee being proposed when I live the same distance from the restaurant as the last time I ordered and didn't get charged the fee feels like you're not doing your job in "handling things" for me.
People outsource tasks in part because they don't want to think about the details. Where do UPS trucks get their fuel? Do they use diesel or gas? How long between oil changes? Do the drivers get cold in the truck? Where do Door Dash drivers use the bathroom while they're working? Is the grocery store losing money on those end cap bargains? How does the electrician figure out how to not get shocked? How does the plumber solder pipes without burning my house down? How do roofers stay safe while installing their safety anchors? How long do painters' paint brushes last?
I don't want to think about any of that; I just want to have a reliable service provided with the details handled for me. Every bit of friction you put into the system with fuel surcharges, baggage fees, resort fees, blackout dates, surge pricing, weekend surcharges, and the like represents both financial and attention loss to me in terms of the value you are providing. (At least surge pricing, weekend call-out surcharges, and blackout dates I can understand as maybe essential to giving an attractive overall proposition.)
