You consented the moment you got a cell phone or a car that had GPS built-in or installed an OS or got internet at your house...
No, I did not. These are features that exist for my convenience, not as mass surveillance tools. The government is abusing them.
You can disable GPS on your device all you want... your cell radio signal is still enough to get your location within (I think) a few meters (depending on factors).
Yes, if you have control of the cell towers. Or run an IMSI catcher. But the technological solution applied is not the question. The question is if we want someone as untrustworthy as our governments to be able to constantly track us.
So what, if a thousand other IMEIs show up on the screen...
The fact that you personally maybe don't care doesn't give you the right to opt-in all of us who might care. The problem is that once the technology exists, it will be abused. It already is. If we explicitly allow it, abuse will run rampant. We already have examples of cops using surveillance tech to spy on their spouses, or to stalk that cute girl from the bar. We have tons of examples of surveillance permissions granted for one purpose being used for another one. When the government wants these laws it's always to find child abusers and terrorists. But that is never what they actually have in mind.