Bad economy has good side ;)
I cross state lane several times a year and usually CA plate gets me waved thru, but when having loaded car, they used to stop me and ask what I am carrying.
Banana and potatoes are safe.
Then when I was coming with motorhome having Maryland plates and I told them I am bringing it to California, they hold me almost 1 hr for inspection.
In last years I see single officer waving 2 lanes of traffic.
Oregon and Washington did have boat checks, don't know if that still exist.