Scrambled 2 F18s to find 2 drones in "flight path"?

What is a "flight path"? Where does that path start? What altitude? How close to the airport? Within 5 mis? I'd guess much less than 5 mis out from the airport if the drones were called @ 2K. If so, how do you scramble 500 mph fighters on top of a municipal airport? I think even Cdn use statute mis for airport vicinity. So, were these drones within a couple of mis. of the airport? These F18s were going to do what? Heat seeking missles? 20mm cannon fire? Should pretty well decimate the arrival gates. However, probably some civilian casualties are acceptable to take out a Phantom 2...or 3.

I'll call this one bunk. Remember the "drones" @ Heathrow.....aka plastic shopping bags.

https://www.theguardian.com/technology/2016/apr/28/heathrow-ba-plane-strike-not-a-drone-incident

Even after the English decided that it probably was NOT a drone, drone operators were warned that they'd be cracked down on. How about bicyclists? Might as well warn them also to stay away from heavy airport approach space, even though they weren't there either...they need to be warned.