Left Deadpedal loose?

I know it's a trivial thing, but it's driving me nuts. I have a 2003
RX300. When I rest my left foot on the deadpedal then remove it, it
makes a "snapping" noise. I mentioned it to my Lexus dealer at the
last service and they didn't find anything wrong. It seems to be a
little loose, but it also seems as if it flexes inward a bit when I
rest my foot on it, then "snaps" back when I remove my foot. It's
driving me nuts, but it's a small thing.

Anyone have any suggestions before I mention it again at my next
service (with a different dealer)?

Thanks,

Bob