i jammed mine when reaching over to the passenger side floor board. I thought it was stuck for good. I had to jiggle it from left to right a few times and it did the trick.

by the way... this happened shortly after doing a 180 in an empty parking lot (couldn't help myself) with a full cup of starbucks ice tea in the holder. it was my first spill followed by nearly breaking the cup holder. sometimes you pay for stupidity immediately.