Kristin Cavallari says she was taken into police custody in Chicago this morning -- and forced to post bail -- and claims it all has to do with her driver's license.
KC went to Twitter moments ago and said, "Who knew having a California drivers license in Illinois was a CRIME to be escorted to the police station to post bail?!! What a morning."
The former MTV star -- who's married to Chicago Bears QB Jay Cutler -- is insinuating that she had the same problem Justin Bieber had in L.A. ... when he was cited for not having a valid driver's license.
In Illinois, you are required to have an IL driver's license once you have lived in the state for 90 days ... or you can be cited.
However, KC says she's not a full time IL resident and therefore shouldn't be subjected to that law. She also tweeted about it saying, "I still have an apartment in LA so I'm a resident of California."
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