ROFLMAO! Where did they recruit you from ? I have never come across any aliens whatsoever but do tell me more about them ?
Good to know it will be covered if mother nature happens and it's good on your part you were transparent with the customer/client others wouldn't be so forward. Clarity,honesty is always a noble thing in my books, hate companies that lie and don't take responsibility.
MDS were never transparent with me whatsoever their drivers had excuses that they couldn't find my house number etc but after supplying them with crossroads/intersections that helped them a lot to actually find me.
What MDS should do before the driver is dispatched etc. They should send an SMS notification and by default if you don't respond that means you available for the courier if you aren't then type NO