I have seen the video as well. I don't have an uncut version of it. The whole thing is "cartoonishly stupid" as you say.

This video contains some of the video you're talking about.

https://www.kcci.com/article/washington-dc-officer-eugene-goodman-others-testify-in-doug-jensens-federal-court-case/41321908

If you google around for Doug Jensen, his name, you can find more. He was convicted, but I haven't found if he has been sentenced.

I did come across this odd bit.

https://www.desmoinesregister.com/story/news/local/2022/09/20/doug-jensen-trial-opening-remarks-jan-6-capitol-riot/8067417001/

The defense did not attempt to claim Jensen was not present at the Capitol on Jan. 6, but painted a distinction between the Capitol rioters "dressed in costume" and those "dressed for battle." Jensen, the defense argued, was the former. 

Very interesting defense, wouldn't you say?