I have all my stuff locked up so if you need to disconnect mine, man handle the plastic door and bring bolt cutters to cut the electrical whip.
Believe me, the fire department will tear your stuff up if you make it too difficult for them to get to the breaker.
Mine is locked up too, mainly to prevent mischievous kids from tampering with it, but if the fire dept. needs to cut it off, all they have to do is break the window on the controller door and they can open the breaker in a couple seconds.
If my house is on fire, I won't complain about having to replace the cover. ;-)