Now if they would just do something about the random road checkpoints further north. Where did I come from? Where am I going? Who else is in the car? NONE OF YOUR FUCKING BUSINESS!
The federal government has had the legal authority for decades to conduct warrantless "reasonable searches" of any person or vehicle within 100 miles of the border. Why did you choose to live within that area? It's your fault.
You do know that you don't have to answer those any questions a cop asks you, right? You can even tell them "that's none of your fucking business" if you want, although I'd recommend not being a belligerent asshole about it if you want things to go smoothly.
From what I understand about ICE is they are part of homeland security which was established outside of law enforcement regulations due to things like the patriot act. ICE does not need to have cause or even log whether or not they detain or arrest you. None of us have any rights under the patriot act.