No direct, personal experience in Mexico - though I'm also very interested (I plan to take my drone to Honduras in February, and hoping to fly it in Mexico at a later date). But...
See this thread
Flying in Mexico - and read
all of it, especially the (currently) last entry, which I will quote (in part) here (
bold text is my emphasis, not theirs):
@
cms3717, who posted that, also describes a letter he/she sent to the Mexican authorities. He says they assured him if your drone is under 250 grams, and flown just for recreation, you (yes, even a visitor) can operate it legally, as long as you follow some reasonable restrictions (similar to restrictions you will find nearly everywhere: stay far away from airports and heliports, no flying over people, no flying over national parks or antiquities, don't fly too high, don't fly around military stuff or anything that could be classified as critical infrastructure, lots of other common sense restrictions).
Maybe ping user @
cms3717 to see if they can provide any update/additional details?
Bottom line, if what he/she says is true (I have not verified that it is), you should be OK flying your sub-250 gram
Mini3 Pro recreationally in Mexico, as long as you fly responsibly and follow common-sense guidelines. Being discreet will certainly help.
(FWIW, I've had my share of encounters with Mexican cops, and have always found them professional, reasonable, even friendly and helpful, just like the cops at home. Of course you will hear lots of stories about shakedowns, but I've always found that if you bring a respectful, humble and friendly attitude, that has always been how they've treated me. YMMV)
If you do take your Mini to Mexico, please do report back on your experience (including details of any "drone tax" issues you might face upon clearing customs).