Electrical Meltdown?

[Hughzie]

So notices my Bluetooth didn't connect to my phone this morning, It does do that from time to time but you jut have to delete and re pair the device, So tries to do that but it can't find any devices and my phone can't find it either.
Great now what? I did what I normally do with the Berlingo electrical system and decided I would just leave it to sort it self out and see what happens in a day or two.

Off I went about my work and set about my delivery route, All's fine with the exception of the Bluetooth but its not a essential system so nothing lost. Gets about an hour and a half of work behind me and did another delivery only to notice as I walk back to see the wipers moving? WTF?
Gets inside to find the fan running on the AC too!!

Neither are supposed to work without the key in the ignition right?!?!  

No Idea what to do at this point, everything inside the vehicle appears to have power and the wipers have a mind of their own? So started the engine and every light on the dash came on too along with warning alarms going off! FFS
Engine was running fine though?

Thinking to myself well thats today screwed, how much is this going to cost at this point. So turned it off and started it again,
Everything is now fine!?!?
It finished the day without any other issues other than the Bluetooth still not wanting to connect.

Anyone got any ideas what on earth could have made it do that, Cant work out if I need a garage or an exorcist?