If someone believes strongly enough to inconvenience others, they should be willing to show sincerity by paying fines or spending time in jail.
Just inconveniencing others without feeling some pain yourself is just selfish.
Not saying I disagree in principle, but the protestor assumes a lot of knowledge.
Regardless there is a stark difference between medication, which is necessary, and hot prepared meals, which are a luxury.
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.
But also diabetic hypoglycemia is a thing too, which could be the case for the person ordering. For the sake of argument.
Why insulin? Why not have the robot deliver premature babies from a regional hospital to a central hospital, on a battery powered NICU that only has 30 minutes of battery power?
The argument is unlikely.