No. It's not right. I assume he bypassed the contactor and now when you cool low enough the thermostat will shut the indoor fan off and it will freeze up. Meanwhile the outdoor will keep running. All bad. Shut it off at the breaker or pull the disconnect outside. You can manually control the off and on at the breaker for now but make sure when the thermostat is satisfied you shut it back off and wait until the stat drops below the set temperature before turning back on. Not sure why the unit was freezing up before he got there, but it surely will now. Freezing up can be caused by low/no airflow, dirty filter, low refrigerant charge or pressure imbalance caused by a restriction in the lines. You should call a different tech.