The indicators shouldn't stay on when the ignition is turned off. I would suggest you monitor things and check that you don't start to get any strange indicator related faults. The Turn Signal Module Morgan p/n E340064 is prone to breaking down and causing faults such as the engine running on when turned off and hazard lights flashing when not selected. There is a new "hardened" version being produced, details on this forum if you search for it. It sounds like it should be a far more reliable module but maybe not available just yet.
