Freeze plug pushed out

So, my son and I just finished the rebuild of his v6 in his car. We tore it down to the bare block, replaced everything including the freeze plugs obviously. When he bought the freeze plugs half were brass, the other half were not. The parts house didn't have a full set of one or the other. I remember thinking that I hope they all seat the same. We used rvt when putting them all in. I know the brass ones seated differently than the others did and thinking that I hoped they stayed in. Well he took it for its maiden cruise to hang out last night. New clutch and rebuilt engine, runs awesome and goes through the gears nicely. This morning he tells me that it pushed out one of the brass freeze plugs and evacuated the antifreeze going down the road on his way home. The hood was still off so it stayed relatively cool until he was pulling in the driveway. Should I think about popping out the other plugs and replacing them while it's on the lift doing g the one?