That won't do anything at all.
If he let that pass the first time around, without at least complaining to his father, he wouldn't have been worth squits the second.....
If it had been me in his shoes I would have "glasgow kissed" dad, and chucked him out of the window....
Don't bother waiting for an apology from that lot, dear, because there won't be one on the way.
You have to demand one.