I don't know the answer to your specific question about WiFi, but I do know that (and I can't remember the exact legal details so this is a layman's explanation

I don't know the answer to your specific question about WiFi, but I do know that (and I can't remember the exact legal details so this is a layman's explanation, terminology may be wrong) they've created plenty of temporary Olympic-related laws already, so it's not impossible they've done the same for WiFi.