Mechanic jacked car without turning off air ride switch

What is your question?

Restored my classic 1999 Merc Grand Marquis LS ended with completely replacing the air ride suspension with all new parts and all was fine. Took to a reputable nationally known auto shop for new tires and full alignment. Mechanic did not turn off air ride suspension to change all tires and do the alignment (I noticed he left car running while it was on the lift) and while I drove away the ride felt not as smooth as before; within a matter of 8-10 hours later car, the car's rear end had sagged all the way down over rear axle; now compressor runs but fails to inflate new air ride suspension. What's happened and what is the fix?

What makes this problem better or worse?

nothing makes it better as it is now

How long has your 1999 Mercury Grand Marquis had this problem?

Rear end began settling immediately and completely deflated with 8 hoursstarted s