If you are a member of AAA, you might give them a call. They might send
locksmiths out for free. If you are able to open and lock the trunk (e.g.,
with a remote control or with the latch thing next to the driver's seat),
they won't come out.
In theory, you should be able to get a replacement from a dealer. And it
should not be too hard to replace it yourself or have your local mechanic
Apparently, you are not the only one with this problem:
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