On motor and door

What is your question?

My a.c. compressor has been making a crazy noise for about a month. Belt broke on ac and tension pulley locked. Replaced pulley and belt. Yesterday it was super hot in line at McDonald's. We went on and turned air on despite the horrible noise. We pulled off and car quit after the compressor made a loud bad clanking sound. Pulled up in oreillys to let it cool. Started back but no power to move. Had to toll car home. What happened when the compressor locked up to make car lose power and not move but starts up??