Thats pretty much old school. First you will need plastic explosives. Quality is important so don't go cheap. Strap the explosive to the target(Conspicuously!).
From here three things can happen:
A.) Explosive blows the machine creating a distraction to use the quoted method.
B.) They some how they figured out your plan. Go into stealth mode and just jump in the big backpack. You'll probably get stuck in the bag anyways and die from lack of oxygen.
C.) The coke machine man shows up. Just hit em with the crowbar and put him in the bag. You can trade him for more soda =)
We do not know how to exploits the vending machine if any body know about this so tell me. And what code used to exploits the vending machine...
And Thanks for sharing the views with me.