Electric cars will ruin late night listening?

a PS Audio noise harvester flashes a blue LED to burn off electrical noise.  The more the noise harvester flashes the more electrical noise is indicated.   Personally I think the PS Noise Harvester is over priced.   There must be more cost effective means to reduce electrical noise.   

Likelier they'll ruin your ability to drive cross country. If they truly become a forced monopoly,

how so once electric cars inevitably reach critical mass and there are plentiful charging stations and long range batteries?

It was a joke in a serious way. I had to bring a amp to the house of the guy that works on my gear. He had a guy build a house next to him and they had to start to share the same transformer and said his electricity voltage started to fluctuate and felt he now had DC in his line because his tube amp started to get a mechanical hum. He mentioned when everybody in the future has there electric cars plugged in  at night what will that do to our quality of power. I had never even considered that and thought it would be interesting what everyone here would say to this one. I know some don’t agree that there system sounds better at night and I understand that but at my house does sound better late into the night. You would think if cars are charging at night it would affect my power, right?

Electric car charging is a stable current demand. I am much more worried about LED lights, with their SMPS injecting horrendous noise. As neighborhoods are converting to unsing LEDs, the daytime listening has progressively declined, and even late night hours are often turning worse than peak times were 20 years ago. 

Over here in Europe a better question is whether there will be any electricity to run hi-fi and homes once hundreds of millions of electric cars have taken it all.

Here in sleepy UK we haven't completed a large new power station for more than 25 years and we have to buy electricity every year from France.  Who threatened to cut off Jersey (a small British island near their coast) last year.

As to noise on the public electric line, has anyone thought of using a mains powered electric generator to drive the hi-fi?  No noise enters the system from the public line and no pollution/noise from a ICE generator.  Think of all the money you'd save on tweak power cords/fuses/conditioners/etc.