Hey there. I was out at IBP for my first ice session of the year as well. yes they are charging for parking. Insane amounts of people out there (mind you that was my first time at that location, so maybe it's normal).
I am not as brave as most so we stayed over 60' of water and the ice was about 6". We had a couple sleds pass close by and felt some movement in the ice as they passed which was a littly freaky but it was subtle and we still felt safe.
We caught about 20 perch, mostly dinks. Two over 10"s one being 12.25 on a small white twister tail on a jig head. Most of the dinks were lured in with aggresive jigging using williams. All in all a fun day on the ice, and i can't wait to get out deeper for lakers and whities