Has anyone fly drone in mexico? Anything to pay attention?

Just came back from one week vacation in Cancun.
They are very very very very very relaxed about drones.   I even few in front of Policia Federale.
Just be very mindful about the airport's flight path.  They come in fairly low on approach.

the regulation is more or less the same as FAA's in US.  
but the biggest differences was in private parks, golf course, water park, beaches, etc.  they were very accommodating about drones.
I even launched and landed from paragliding boat with captain's blessing.

just be very respectful and you'll be fine.   
enjoy your trip