Infield fly?

[Rog]

Re: "should this call be protested"
As was stated - it was a "judgement" call; which, is not a protestable matter.
Now, perhaps you can approach that umpire in an amicable manner at some point in the future and pick his brain as to why he felt that it was an infield fly.
Let him explain why he felt the need to make the call. Then give him your understanding and impression of the situation and see where you differ.
Perhaps he will encorporate some of your thoughts prior to making his next infield fly call.....