I mostly prefer using many areas-of-intrest as opposed to having location on because of battery, performance, and untrusted apps (like moovit and they DID leak user data)
While this isn't a full solution this may help most of the time and you could turn location on if you plan going somewhere far
Then again, it's not like these sirens are any quieter than a jet engine so I guess that also works (it did for 60 years)