just seems like it, arguing about a check is not safe.
it’s safe if you go and convert it to cash at the bank its drawn on.
If it’s a tellers check you can do this at any bank not just the one it’s drawn on, unless the banking rules have changed since 2000 (when I bought my house.) was told then and there when I had it drafted at PNC that this could be directly cashed at any bank not just PNC (without having an account there.)
but that’s the rub, you must convert it to cash before you release the goods.