Crossing state lines, with parts

The DOT does not need a warrant to make you open the doors to see what's in there, just like the DNR does not need a warrant to come into your home and search your freezer.. I have had them make me break seals on loads I have hauled so they can see what's in the trailer.

If you're a class a driver carrying/hauling a load you're correct but a non commercial use be a no on that. It's all about unlawful search and seizure. It's all about knowing your rights, maybe it's different on the east side of the country but here on the west side of the country my glove box is locked so the trunk in the back and I know my rights so you'll need a warrant for that.