There should be no trouble travelling after getting an ICD implant, however, you should consult with your doctor if it is safe for you to travel yet after the pacemakeer surgery.
In case you are travelling by air, the airport security detectors are generally safe. You should remind the security staff that you have an implant and discuss the screening procedure thereafter. You should have your ID with you wherever you travel.
In case you drive, it is recommended to discuss with your doctor, and you may be cleared for driving if deemed fit by your doctor.