Unironically, not trying to be silly, but I think you need to accept that you’re gonna have a “few” “extra” spiders for a little while. Because yeah, there’s hella more spiders than that and they’ve probably spread by now. And as other commenters have said, as long as the spiders aren’t venemous, you probably do want some spiders in the house (as long as they’re not spinning webs where you walk) to get rid of the actually dangerous bugs.