Arrowhead Stadium Tips for Cold and Kids

We will be traveling to Arrowhead for the first time this weekend to watch the matchup against the Texans. We have 2 young children. We will be packing noise cancelling earmuffs for them. Please give me alllll the advice! How to keep warm? What to expect? Experiences with your own kids? This will also be the coldest game my husband and I have attended (have been to other stadiums).

Edit to add: any seat suggestions or seats to avoid? Will we look like complete idiots if we show up in our snow bibs/full ski gear?