Incubating turtle eggs

Today I watched a painted turtle lay eggs in my driveway. It is directly in front of where I pull my truck in/out of. I've seen painted and snapper turtles do this before, usually closer to the water, and these are typically dug up by raccoons (or something) the first night. This new batch is in a really bad spot - on the driveway.

I marked it off and put something on top, to keep predators away go a while.

So, my question is if there is a relatively low cost way to incubate these. Ideally something under $100 and somewhat idiot proof. Another alternative would be to relocate them to a raccoon proof place above, but near the water, down under a couple inches of sand/soil, with direct sunlight.

Any opinions/advice is appreciated. I'm in northern Michigan, if that makes any difference.