All it takes is a simple law stating that if you circumvent the speed limiter you face far more serious penalties. Done and done. Literally no different than how we handle suspended licenses.
Criminalising driving on a license suspended for a traffic offence (note: not expired or for financial reasons) seems like the easiest no brainer imaginable.
That just means the penalties are not strict enough. Even worse, we're afraid to impose real penalties (jail) so we rather just "fine" people (because it's more humane?), which will affect those most likely to drive without a license more than the regular folk. The regular folk will be scared shitless and will just get a lift with someone till their license issue is resolved.
The law mentioned in the article will allow judges to require a device to be installed at the defendant’s expense. It’s not about what is built into cars at the factory.
I bet 90% of initial implementations will be resettable back to unlimited speed with a simple factory reset or similar.