I think not.
The EMP screws up solid state stuff. Transistors, chips, ICs, like that.
So, turning off your XBOX won’t save it. (The XBOX comment is not for you, it is for the hoarfrost.)
Put it in a Faraday cage.
Get out your semaphore flags, smoke signals, pigeons, Pony Express, ...
So, everybody in Cuba will just keep right on driving then.
If I wrap my car in chickenwire will it be safe?
“Put it in a Faraday cage.”
Go to Salvation Army and pick up a couple of microwave ovens to put in your basement to store spare electronics in. (Don’t plug them in.)
I read a microwave oven acts as a Faraday Cage.