Sneaking in the drone into the UAE is NOT an option at all, the consequences are too harsh. But they do offer to leave your drone in consignment at the airport and you can pick it up when you go on to your next "drone friendly" destination.
Many years ago when the very first commercially...
To get back to the OP asking why his mavic disconnected, I noticed that the antennas were folded on the OP picture from the previous day. If they were indeed folded, that would explain the disconnection at such a short distance.