I totally get your beef, but how about changing your mindset instead? That's what I did and honestly I found peace!
Before I enter any coin room, I mentally prepare myself. I assume there's always gonna be some jerk who'll take 45 seconds per stroke just to mess with me. So I grab my coffee and a couple of Snickers bars, and settle in.
And if it actually happens, I just go, "Ah, here we go again, you clown. Do your thing, I'm not even blinking." Then I just do my own stuff while they waste time. LOL
⬇️ EDIT : Cheers, Rick! 👍🏻 ⬇️