Yes you can be held liable if they are able to identify your car. If you are asking this question, sounds like it was more than a mere bump to the other car. I would imagine the tavern had security cameras, if they did then the person that was "bumped" can view the video and make a police report and quite possibly identify your car as being the one that bumped into his/hers.
I am only licensed in Arkansas. No part of this answer should be construed as creating an attorney client relationship.
You normally are required to to leave your name or insurance information when you hit a parked car. You should talk with criminal defense attorney before contacting the police about reporting the crash.
DISCLAIMER: David J. McCormick is licensed to practice law in the State of Wisconsin and this answer is being provided for informational purposes only because the laws of your jurisdiction may differ. This answer based on general legal principles and is not intended for the purpose of providing specific legal advice or opinions. Under no circumstances does this answer constitute the establishment of an attorney-client relationship.
Always report every accident to the police and to your insurance company, or it will come back to bite you.
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