Oh well, duh!
Thursday 26th 0815EDT
Happens to the best of us!
The only reference I found listening to the archives is well after your flight landed. CLT Tower gave clearance to cross 36C. The CLT feed covers a number of frequencies so it's very likely that any of the coms from your flight regarding this event occurred while the radio was on another frequency.
How long were you sitting there on that high-speed taxiway before you continued to the ramp?