Detector Man I used to have a small cactus that I got when I was like 12 from a nursery in Nashville. Had it for 3 or so years before moving to CA. When we got to the border of Cali the "border guard" asked my mother if she had any plants in the car. My cactus and another plant were in the backseat and when the lady asked if either had been outside my mom said yes for her plant but no for mine... they took my mothers plant but left mine. Unfortunately, during the remainder of the trip it fell over out of its pot without the other plant beside it and subsequently died.
A few months ago I got an small aloe cactus from a friend for my upcoming road trip. This time I'll make sure to not let it fall out of its pot... and say no if asked if its been outside lol.
Nice Cacti by the way.