If there isn't a electric fan that would do it because you weren't getting enough air across the condenser coil also sitting at idle with engine rpm below 1200 to 1500 rpm the compressor isn't moving enough refrigerant. Best thing to do if stuck in stopped traffic for long periods is to idle your engine up to 1200 rpm to keep the a/c working and have an electric condenser fan if possible but if not idling the engine up will help a lot.
2014 Palomino Columbus 3650TH
435AH 12V VMax Charge Tanks, 520 watt Monocrystilline Solar Array, Morningstar MPPT TS-60 CC,Morningstar Remote,Cotek True Sine Wave Inverter,Cotek Remote Controller,50amp Progressive Hardwire Surge Protector
2015 Dodge 3500 6.7L 4X4
2011 CanAm Commander XT 1000