Good question! Lambert immediately post-recovery will not be in any shape to chase after Foster, so it depends if Foster would feel compelled to seek him out while he's still injured or is more likely to make himself scarce until he knows the Nightrider is up and about. Foster's probably not high on his list of priorities but he probably does want to make a sarcastic quip about 'so was I just imagining it or did you kind of admit you tried to sell out to the Prince.'