CAR 2004 G35X

Okay so the day after Irene my lights were on when I went to the car (did not drive it at all during the storm).

I went in the car and turned it on then my wipers, headlights highbeams and turn signals were staying on without me touching anything. I brought it to the local mechanic and lots of of dollars later they replaced the combination switch for the turn signals and wipers. That didn't help! It's been more than a week now and it is happening intermittent. I am about to take the car back to the shop...I did a lot of reading and saw it could be a faulty IPDM or even a bad ground...it's inter Intermitent so I am confuses!

Please help I broke and need my car

Thanks all