Oh My god! You are playing my song! I found it so hard to find anywhere thatvthat does a proper "coffee with ice" that I make it at home on the weekends as not to bother any cafe staff by being "High maintenece".
On a recent hot day that didn't fly so my approach was to ask for a double shot of espresso over a glass of ice with trim milk, which worked beautifully:)
Otherwise, I get either blank stares or eye rolls if I ask for it any other way.

All hail the Ice coffee **
** without syrup or ice cream, just ice!