I have never had mine inspected and it usually is on my rack on top. But even if checked all they do is look for it to be clean on outside and no water inside, kayaks are pretty easy to pass inspection. I always think it ridiculous when I get stopped at the California checkpoint after a Mead or Willow run, they pat it a couple times then send you on your way pretty much a waste of time but hey State employees are good at that.
UPDATE: Went to Silverwood and did great! You were right on with the lake choice and fly selection. Miller is definitely a kick, but worth it. I had a black (think its technically a Krystal bugger because it has some estaz in it, whatever) bugger with an orange head, and absolutely killed it. The first cast was a fish and the bite was basically non stop from then on. I also caught a few on a san juan worm. Very little surface activity and dries were pointless. All the fish I caught were rainbows and most in the 8-12 inch range. A couple 12+ sprinkled here and there. I felt like stripping the bugger in faster produced better results, but the bite was really on so its hard to tell. The kick back is bad, your against current and if the wind picks up good luck. Still hands down best day of fishing this year, and Silverwood is going to be my new go to lake. Thanks for the help!!