I never said that. The ability to restrict other's movements is NOT freedom.

Isn't the ability to shoot someone dead, "the ability to restrict other's movements"?

If Police use them, I believe they should have to pay for the damage they cause.

I agree 100%. I've heard of many cases where police searched automobiles or homes and basically ripped them to shreds without finding any contraband, and the owner is expected to pay for any damages.

Conversely, no one has the right to do harm to others with their property, in this case their car.

In your wild-west-fantasy, how do you expect people to keep others from doing "harm to others with their property"?

Isn't the concept of "guns for everyone" (mutually assured destruction) precisely the same as giving everyone equal access to the hypothetical StopDead app?

Wouldn't "mutually assured destruction" also keep people from just killing other people's cars for fun or for spite?