Our new 28DS exterior was washed, windshield was spot less, tires shined up, water tank sanitized and filled, gas tank full, interior was cleaned but still had construction debris in cabinets etc. The storage lockers however were full and I mean full of construction debris. All in all it was still acceptable and I think the dealer made an honest effort. Just be aware the sawdust, plastic shavings, lost screws and other construction debris will filter its way into places once you start driving the unit. I will admit we are in Illinois where the State takes great pride in the roughest and most potholed roads in America.
My opinion is you should not lower your expectations, the dealer should exceed them. If they don't, do not accept delivery until they do.
Anthony & Amy Dennis