If you hit a pole and drive off, even if it's just a pole located in a parking lot, it could be considered an illegal hit-and-run. Rather than fleeing the scene, it's best to report the damage immediately.
Your insurance claim could also be in jeopardy if you flee the scene without filing a police report. Insurance companies often refer to police reports as evidence when processing claims, so it's best to report the incident immediately to the police and your insurance company to ensure that your claim will be processed without an issue.