I was only a couple of miles from home so I kept going.
When I stopped the car in my driveway I tried to move the suspension through it's various positions but there wasn't a kick out of the hydraulic pump. The car would not go up or down.
When I turned off the engine all the ride height lights on the dashboard stayed on.
I left the car for about one hour and then started it again and everything worked normally. I did some citaerobics and drove the 26 miles to work this morning with no problems.
Does anyone know what it's all about?