I found out the answers let me fill you in.
If you live in Illinois, Michigan, Wisc or Minnesota i would not try that in the winter.
I called the DNR and asked so here is the deal.
If you have a private lake you can do whatever you want they can’t do anything about it (summer or winter)
If you sink one in the Winter its considered Endangerment because they have to send out divers in ice cold water to look for you (risking their lives) makes sense. You will get reckless driving and endangerment for sure possible EPA involved.
In the summer it’s a bit different. From what I was told there is no actual law that states you cannot drive over water AS LONG AS YOU MAKE IT (summer only). It’s not endangerment because there is no ice cold water.
As soon as you sink it…. That changes everything (they can get you for polluting)
Also when I sank mine in the summer I had a pontoon boat on standby with a crane. By the time the DNR got there we already had the sled out of the water (very important). Otherwise they will call out a crew and you are paying for it. BE PREPARED with several strong buddies
How do I know this you ask? I got zero tickets

. They were actually pretty impressed by how professional we were getting it out before they got there. (15 min)
I know by me the wait on the river past the bridges and just wait for people to cross open water and ticket them (in the winter) so in the winter not worth it.
Find a private pond. Problems solved!