I wouldn't be measuring the gust!
I am saying that IF you ran off the side of the runway, after a tower report (from tower measured wind) of gusts over the aircraft limit ...
... well I would imagine that would be very hard to explain to a judge.
Now you and I both know all of the caveats on wind reports and demonstrated crosswind limits - but convincing a judge and/or jury of that will sound a little .. um ... like a contrived excuse.
Not to say I'm not happy to land over demonstrated limits - I have before and I guess will again. (My current company has an ops manual hard limit though - and it's their play set.)