What they're talking about is a scaled up version of a wireless charging pad for a phone, so that means huge coils under the road surface, and a similar huge coil under the vehicle. It does work, but it would have to be paid for by vast numbers of printing-press dollars from Uncle Sugar and it would cause endless traffic disruption while the roads are rebuilt.
Note that wireless phone charging always take longer than a direct connection.
What you would see is people slowing down, or even stopping, when they realize that they're getting a charge from the road. Even more traffic congestion would result.
Robert Heinlein suggested a different approach in his 1940 story, The Roads Must Roll".
Or:
Gas stations will simply load up with hot swappable recharged batteries that take a minute to replace. You subscribe to the service like AAA. A lot simpler.