Yo Jael!
The reason the machines or the Architect can not kill Agent Smiths process is that he is like a virus. Virii or rogue programs by their very nature incapacitate systems often requiring another third party or external process to neutralize it. Speaking of which this is a hot shirt.
If the Ice Cream cones are that cheap I suggest you do this Jael: buy about a thousand of them and stick them in your suitcase in the freezer. Then just before you get on the plane pull them out. You can make a mint. Plus the proceeds will pay for our own hedonistic consumption of a large percentage of them.
Suck it Trebek