I like your idea with the owl call CamoCop, awesome.
I have found if the squirils are busting you and barking at you, it is becasue you are either moving too much or need to better conceil yourself, I have them around me all the time and it is not very often they bust me, and if they do its because I moved or my camo is not matching my area.which it's Great to Know becasue if they are Busting you constantly the Deer Will To,before you ever see them. So you should probrably considerbetter hiding yourself and or change camo patterns.That was a mistake I learned years ago That a very Nice old Timer pointed out to me and since I regulary see Deer where as before if I did they were so far out you'd never get a shot ifI did even see anything, Hope this helps.
Good Hunting