If a warrant has been issued, the police have no choice but to arrest you as soon as they encounter you. The matter is out of their hands. They're under orders

If a warrant has been issued, the police have no choice but to arrest you as soon as they encounter you. The matter is out of their hands. They're under orders by the judge who issued the warrant to take you. The application for the warrant should be a public record. If your lawyer can point out errors or falsehoods in to application to the judge, he should be able to get the judge to quash it.