If you said, "Hey, you mailed this to the wrong place, this isn't technically giving us the right amount of time," then, if I was the landlord, I'd say, "Oh, so sorry. Remember all those times that your rent check got lost in the mail and I never charged you a late fee? Yeah, well then I guess you can appreciate that mistakes happen, right?"
I'd bitch a little bit to CR about your landlord not technically giving you enough time and then write out my rent check for February - with the $35 fee increase included - and go on worrying about more important things.