The rest of the story....
Well, I had mentioned the couple that had been quoted 4 grand to replace 2 cracked windows in their XLII......
So, the rest of their story was about their slide. They have a single slide XLII.
On their way to a service appoint, while driving at 65 mph in the passing lane northbound on I-95, the bus parking brake suddenly applied, bringing the bus, toad, and everything else to a REAL FAST stop.... they managed to wrestle the bus to the median on the left before coming to a complete halt. The first suspicion was a blown tire, but they then realized that "somehow" the parking brake had been applied.
With no damage, except to the nerves, they released the parking brake and proceeded to Prevost for their scheduled appointment.
After much discussion and determination as to exactly what they had, they were told "oh, you've got one of those"
Apparently, their coach was designed so that the parking brake was sensing the slide out position, the theory being that it would prohibit you from driving off with the slide extended. However, they had apparently lost just enough air pressure to confuse the system and make it apply the parking brake, thinking that the slide was extended.
They were instructed to have the system disabled immediately, apparently they were not the first to have this experience.
So, if anyone believes that you have such a "safety" feature on your bus, you are encouraged to remedy this problem as these folks did.