

I agree with what you’re saying. They got the phone from Carrier A with the expectation the phone plan went with it. Once the phone is paid off, they can take the phone to Carrier B. Since they phone is basically bought on an interest free loan, the interest is recouped by the plan, and the collateral for not paying is a loss of the phone plan and use of the phone. To leave the plan, payoff the phone.
That does require that, the moment the phone is paid off, it should be automatically unlocked. There shouldn’t have to be a request or additional waiting. And the customer should be notified that it’s unlocked along with an explanation that they can now use the phone with any other provider.
If it’s raining, there’s snow on the ground, or many other low traction scenarios, the cop would have to really want to pull you over. Chances are they won’t.
On a clear, dry day, depending on where you are, barking your tires is a violation of nuisance laws. Again, most likely not getting pulled over unless you consistently did it.
Now, if you stomped on it and your tires broke loose, you are looking at reckless operation of a motor vehicle. Expect to be stopped.
It mostly comes down to conditions and level of egregiousness… and how bad of a day the cop is having / wanting you to have.