If he just keeps rambling like that he will definitely get an "incompetent to stand trial" ruling, at which point he'll be hauled off to a state hospital indefinitely and the case is at a standstill. When this happens the goal is to restore competency so they can get the ball rolling again. In jail he will have 0 access to "consoom product" which could ultimately be positive for him going forward. At a hospital he's likely to have some rec time (if he's earned it) where he could maybe watch cartoons on a TV but that would be it.
Just take a look at methheads, and the absolutely insane paranoid delusions they think up while tweaking. Police have heard anything and everything under the sun about stories and delusional ramblings.
Chris will only get the incompetent ruling if he's legitimate crazy, which he is not. It doesn't matter if there's 12 hours of him yammering on about Pokemon, the fact that his actions showed that he is in complete understanding of them.
For example, they make sure to go over things like EPOs like talking to a small animal or child. If Chris didn't understand it, he'd do crazy things like try to get in contact with Barb. Remember, this is a guy that freaked out because she didn't answer the phone right away while he's out, and constantly has to check in. If Chris's "feeble, child like mind" couldn't understand the EPO, he'd be calling hospitals and nursing homes all over to see if Barb's there. Also add in that Chris had an excuse ready to go when confronted about the money theft, a typical Chris excuse at that.
"Sonichu told me not to clean the house" will be rebutted by his classes about elder care and dementia that he took a few years ago. He can pay bills, he can provide food, he can manage money, he hasn't been arrested for things like screaming about Snyder while waving his penis at traffic.
Just because he likes to ramble on about his imaginary worlds doesn't mean dick in the justice world.