Yes, it gets paid. You can set invoice limits (e.g. max 1000 sats), time limits (wait 10 minutes before allowing next payment) or maybe in future some smarter solution.

E.g. it would be cool if it only allows you to pay to your allow list of businesses. And maybe that Allowlist could be based on Nostr business profiles that you and your friends follow. So the invoice would just need to include npub and then the rest can be handled in your app.

I guess what I'm saying is that this is solvable and super cool 😎