Well what happens if you do unload it immediately?
The condensation you discover next day will be a result of the laws of Physics. You're asking quite a lot if you expect the manufacturer to tinker with natural laws.
Our Miele dishwasher sometimes suffers with this problem especially if we put it on a cool wash programme - have never seen it on the hotter washes.
You doth protest too much: methinks - but.....
There are other contributors here who may be more sympathetic to your situation - if so it would be good to see their opinion.
Good luck...
Peccavi
April 2013