Is AUTHOR wrong in the post ? POST : Maybe this is a little tame for y’all, but here it is.

New city, new dog park, first time there. I bring tennis balls with me even though most dog parks have them laying around. My dog needs a LOT of exercise and won’t return balls that don’t smell like her slobber. We get to the park and I start throwing. Her first ball get taken by another dog, I say “it’s all good, that’s why I bring two”. Start throwing the second one, after a couple throws it gets taken by another dog. My dog is pretty polite but sly (stray for the first year) so instead of challenging for her things back she’ll try to sneak it back. Anyway, both dogs are growling at her when she shows that she wants one back. She goes back a forth, and one of the dogs drops the ball and growls/barks/snaps at her. The both owners are watching this and just chatting about something else. The owner of the snapper says something like “guess that’s her ball” in too friendly of a tone. I just stand there for at least a minute, so that someone does something (they know the two balls were the ones I brought and it obvious my dog wants one back). I say “could I get one of my balls back?” In probably a semi-frustrated tone. A third owner says “there’s plenty around the park”, I say “she only likes the one that smell like her”, then the two thief owners wrestle the balls away from their dogs and give them back.  They all kind of scoff and I’m thrown a bunch of shade the rest of the time I’m there. Besides maybe ostracizing myself from my new park, AITA?