Air Compressor Problem

Hi All,
Had a strange problem today with my Disco 2, When I came to a stop the compressor kept running, tried turning the ignition on and of and no change.
Went home as I was worried luckily only a couple of miles to home turned the ignition of and the compressor stopped.
Anyone else had this problem?
Or could it be in tank fuel pump?
Any ideas ?

Hi, you should figuire out which part was missbehaving though, with the compressor happened to me too, in my case was sticking relay, replaced it with a new one and never happened again