anywhere to purchase tickets in person in denver/lyons area

i know this may be a random question but i’m in a business that doesn’t allow me to have a checking account/debit card/credit card. i have cash and am willing to drive to get them, would be my first TBF but my girls has spoken really highly of it and i would like to land some as an xmas present to her. i was wondering if anyone knew of anywhere to purchase them in person in the denver or lyons surrounding area??