Can a repo man chase you while your driving the car?

It depends on the jurisdiction, but in most cases, a repo man cannot chase you while you are driving the car. This is done for public safety reasons.

Repossessing a vehicle involves following stringent legal steps and procedures, and using force or intimidating tactics is prohibited. If a repossession attempt becomes dangerous or involves a breach of peace, the repo man may be held accountable and possibly face criminal charges.