@Misa97 Congratulations on your impressive list of acceptances! You have excellent options, so try not to get too stressed over the decision-making process. Any choice you make will be a good one.
My D will be visiting WashU this weekend, so I’ll have better a better feel for that school when I hear her report. In the meantime, however, let me note that WashU does offer some ways to offset the “very pre-professional vibe” that @pmmywest remarked on. In particular, the university offers a four-to-seven-course sequence known as “Text and Tradition.” This covers a lot of the “Great Books” territory that you would get in the core programs at Chicago or Columbia. You can even turn the sequence into a minor under the rubric of the Interdisciplinary Project in the Humanities. WashU also has a reputation for encouraging double majors across colleges–e.g., Classics and Finance, etc. Hence the school should be open to your desire for cross-disciplinary study.
Finally, as for your reservations about police, I would think that St. Louis area law enforcement agencies are collectively feeling the heat of the national spotlight these days. I would expect them henceforth to be extremely sensitive to the kinds of issues that concern you. In short, they are probably striving to be on their “best behavior.”