Legal Question in Criminal Law in California

You will not be able to 'get a hold' of any court without going through court appearances, motions or hearings. If you violate your terms of probation, you face "probation violation' and imposition of the original sentencing terms. However, unless you were specifically ordered not to leave the area, were confined to home detention, or you are wearing an electronic monitoring device, you should not be in violation for simply taking a weekend trip.

If the terms of your probation forbid you to leave the state then you must either get the court's permission to take this trip or else stay home. I don't know why you think you "have to" travel, but the court's order takes priority. You don't "have to" leave; instead, you have to stay.