Will I get in trouble if I miscapitalize on the works cited page?
There is no need to worry.

People have a hard enough time agreeing about what should be capitalized at all.  No people who is concerned with the content of your work will care in the least about capitalization that is consistent and at least vaguely plausible.  Many people will not even notice.  

Rather, what you should expect is:


If there are review stages and you will have a chance to revise, it will make no difference to the decision you receive, and you can fix it in the next revision.
If there is no further review/revision stage pending, then:


If the venue you submitted it will send it through a proof-reader before publication (e.g., some journals), then it will get corrected to their preferred standards in the final proofing before publication.
Otherwise, you can expect to see the errors in print, entirely unremarked upon.