Miswritten reference in (in press) paper
Definitely yes. It's in your best business to have your work cited properly so that it can be disseminated in the community, and the editor's/publisher's responsibility is to provide texts of highest possible quality. Even if they say (some journals indeed do this) that they are not responsible for authors' mistakes, it's a situation where the journal might gain a reputation of one that doesn't care about the quality of its content (so people won't take the research published there seriously), makes poor editting and is sloppy. That's exactly what I thought when trying to find a cited paper with completely messed up metrics (and couldn't, eventually; also the authors didn't respond to my e-mails). So in fact the editor should be grateful for pointing out such a mistake as you're partly doing their job - and for free, even!