How to deal with TPMS on full size spare... is it even possible?

I'm looking into a full sized spare to take with me for long trips. I'm looking through the choices on Tire Rack, and one option is for them to add on a TPMS Kit with free installation.

The tire will spend most of the time in the basement, but (assuming I add the TPMS) when I bring it along, how will my Prius (2024 Prime XSE Premium) react? Will it ignore the presence of a 5th sensor, and if so, how would I swap it in if I do end up having to put it on? Or will a 5th signal create issues?

The added issue, of course, being that I'll be on the roadside, with limited options for potential technical work.