Maybe your warehouse has issues but Costco tire center is top tier

Edit: also forgot to mention their tires come with warranties, free rotations, tps sensors are super cheap compares to the dealership, and they often have other incentives on top of all that.

Unpopular opinion: you can absolutely use Q tips if your ear canals are wider and you don’t just jam it in.

What I do is start at the entrance and twist as I go in and again as it’s coming out. My primary care has never found anything wrong with my ears.