If it's still under warranty I would check with your dealer and see what they recommend. I know you have a long drive to your dealer but a leaking kayak is a recipe for disaster and it will likely result in you not going fishing. Not to mention it will be hard to sell down the road.
One thing to try that shouldn't affect the warranty is to remove the screws and lift up the hatch and make sure the grey gasket under the hatch lip is properly in place and doesn't have any wrinkles, gaps or cuts in it. Also make sure the hatch isn't cracked where it is leaking. Try spreading a thin layer of Vaseline, or petroleum jelly on the underside of the hatch lip where the screws are making sure you have plenty in the area where it is leaking. If you don't have a gasket you'll need to order one.
Here's a video from Hobie on installing a hatch. At 1:39 it gives you a look at what the gasket should look like.
https://www.youtube.com/watch?v=j8eMLF7UODg