Regarding the disabling of the exit barrier, this is a problem still. When we arrived for a month long stay our remote opened our garage but not the entry barrier. My husband arrived one evening to find the security house unmanned with no sign of anyone around and so eventually drove through the open exit barrier as anyone could do if security are nowhere in sight...
Having said that security have been around the rest of the time and did reprogramme our remote to open the barrier. We did notice that they seemed to let many people without remotes in however.