I'd inform your condo board ASAP about the remote, if you haven't thought of that already. I've heard a common thing for theives is to grab, or look at the registration address, and grab the garage door opener.
I lived in a condo, and had no idea what was happening with my car, unless I was driving it, in the underground parkade. That'll be a major jackpot if they get in there with your opener.
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