I googled some more and found this, https://firstamendmentwatch.org/wp-content/uploads/2020/06/Citizens-Guide-to-Recording-the-Police-2.pdf https://firstamendme

I googled some more and found this, https://firstamendmentwatch.org/wp-content/uploads/2020/06/Citizens-Guide-to-Recording-the-Police-2.pdf https://firstamendmentwatch.org/wp-content/uploads/2020/06/C... which seems to suggest this specific scenario has not been addressed by the supreme court, but has been addressed by various appeals courts, and it claims that 61% of the population lives in states that have affirmed this right.