i had this problem with may car before were in my disc brake lock and i was still able to drove the car for atleats 1 Kilometer before i eventually stop i was able to get the gear to go to 2nd gear only upon going to 3rd it will not let me so that about it a stop and called my mechanic
they adjusted the brake and everything is fine na( may turnilyo sa paanana ng driver na inadyas/pinalitan nya)
wala ba epek yun sa makina or sa gear box that was oct pa last year overall performance ng car is ok naman pero stil i thing it may cause a problem internally sa makina