My dads MY00 is doing some funny things this evening! His park lights are staying on, even when the car is off and all locked up!

Any idea's on the cause and action that needs to be taken?

There is a switch located on top of the steering column see if that is switched on

Yer it wasnt that (well probably something to do with that switch somewhere along the lines), however its all working normally now after some fiddling around

You need to replace the indiator stick.. your contacts inside the switch are faulty..