As a Wisconsin resident myself. And someone who has to travel in regardless of weather conditions. I will try to help you out here.
First my vehicle has to be outside in the weather for extended periods. I have never put anything on my door seals. I just make sure I have a old towel handy so after it goes through the car wash you can open the doors and trunk/hatch and wipe those area dry. I have never had a door freeze on me.
As for the locks, every fall I just take some WD40 stick the plastic straw in the key hole and give it a squirt. (that's all it needs) Open the doors and give the latch area a shot also.
Again never any issues with frozen doors or locks.
This is what I do as far as driving in snow. First I always have dedicated snow tires. You may not have that option. But worth it in my opinion. When starting off or I am driving in town I shut off the traction control. Once I am on the highway I turn it back on. But if going slow and in snow I always turn it off.
Can't tell you the number of people I have seen in stuck in parking lots. They ask for help I just tell them shut off traction control. Most look at you with blank face. But most drive out after they figure it out. It will also save you some wear and tear on your brakes.
I also have auto start on my vehicle, I won't use it but I am not going to tell people not to it's their choice. I cover my windshield and will be putting a oil pan or block heater on my Compass. Dealer tells me that the Renegade block heater will work just fine on the New Gen Compass. Got a little long winded here. Sorry. Enjoy your Compass and hopefully we will have a mild winter here in WI.
Spending time learning the science of the mechanisms of friction, lubrication, and wear of interacting surfaces that are in relative motion
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