CC1100: Inverted layout for RF-N and RF-P and consequences for FCC testing

Part Number:CC1100

If by mistake the layout has reversed pins 12 and 13 (RF_P and RF_N) of CC1100, what would be the consequences for the performance of the RF circuit? Are there any risks with out of band frequencies? In this particular layout, the balun is the same as the one recommended in our documentation (below). Thank you!