I think the probability of the cops catching you using a net launcher is too high.
I think a diy directional emp would be a better choice. https://techlinkcenter.org/news/heres-the-armys-now-patented-emp-rifle-attachment-for-taking-out-small-drones#!
For the more technically inclined, I would imagine something like a software defined radio with a powerful transmitter could take control of the drone and go park it in the Hudson.
I'm pretty sure all of these options are highly illegal. So this is just for informational purposes only. :)