Yes you are right. Since when you get to the DME welcome desk they actually ask that only one person per party get into the line to check-in, your dh's not being there should pose no problem. I think someone mentioned, on another thread, that if they had 3 people booked for DME but had 7 pieces of luggage, would DME take the 7th piece. Yes, they have no way to know if you have 'paid' extra for that extra piece at the airport when you checked your bags. So...I can't see why your dh not being in the line and then not getting on the bus would pose a problem.