Appeal after defense vacates infield

[reccer]

Thanks for sharing your knowledge, Blues, I am a far better coach now than I was before I discovered this site.

My team is on offense, 2 outs, I'm in 3rd base coaching box. Little pop to F3, she dives and from my view, ball hits glove and then ground. My attention is diverted to one of my other base runners. Next thing I know defense is running to their dugout. On my way to my first base dugout I asked PU who was called out and why. PU says BU ruled a catch. I said ball was on ground, PU says he saw same thing. PU conferred with BU and call was reversed.

Defense coach says his team had already left infield and that my "appeal" was too late. Its true, they had left infield. Blues ignored him.

Is there a reasonableness standard you guys follow on these 3rd out appeals when defense vacates their positions? I'd like to calmly walk up to a Blue and make an appeal even though the kids have left the infield.