I'd say that this would bring up a bigger issue: why would Uber Eats be in the business of using robot couriers to deliver vital medications? Sandwiches or non-essential goods? Sure, I can understand this maybe, bracketing societal issues that these machines represent.

Prescription medications are controlled. If this robot is damaged or destroyed, the patient may not get their insulin at all without further authorization from their doctor or their insurance company. Those logistical issues are much thornier than a retired professor blocking a delivery robot.