I asked if they could go get an intermediate from Newark Airport. They said they're going there anyway to exchange their out of service (smoked in, and several body-damaged) cars, but in the morning, not after closing time. They said if it were earlier in the day, they might have been willing to do that for me, provided that I was willing to wait several hours.
When I came back the next evening to return the car, all the out of service cars were gone, and parked in their place were several unfamiliar cars. The agent said the manager wasted the whole day driving back and forth an hour each way to the Newark Airport workshop to exchange the cars. The manager nodded, as he was sitting nearby and overheard us. He looked sore and tired from all that repetitive driving.