LAUNCHXL-CC1310: 802.15.4 sensor current consumption > 5mA idle

I am trying to dig through the 802.15.4 sensor example application and I am running into a wall regarding current consumption. I have reduced the application to a single task without the radio controls. This single task just which runs the ADC every 250mS. The current measurements are showing around 5mA average. I lengthened the time to sleep the task to 25 seconds and it is still the same. It seems something is blocking the low power modes. 

This is with a launchpad board with the XDC jumpers removed. POWER_MEAS is defined at the project level. 

Void main()
{
    Task_Params taskParams;

    Board_initGeneral();


    /* enable iCache prefetching */
    VIMSConfigure(VIMS_BASE, TRUE, TRUE);

    /* Enable cache */
    VIMSModeSet( VIMS_BASE, VIMS_MODE_ENABLED);

    CPU_WriteBufferDisable();

    /*
     Initialization for board related stuff such as LEDs
     following TI-RTOS convention
     */
    ADC_init();


#ifndef POWER_MEAS
#if defined(BOARD_DISPLAY_USE_UART)
    /* Enable System_printf(..) UART output */
    UART_init();
    UART_Params_init(&uartParams);
    uartParams.baudRate = 115200;
    UartPrintf_init(UART_open(Board_UART0, &uartParams));
#endif /* BOARD_DISPLAY_USE_UART */
#endif


#ifdef DEBUG_SW_TRACE
    IOCPortConfigureSet(IOID_8, IOC_PORT_RFC_TRC, IOC_STD_OUTPUT
                    | IOC_CURRENT_4MA | IOC_SLEW_ENABLE);
#endif /* DEBUG_SW_TRACE */
senseLoopPinHandle = PIN_open(&senseLoopPinState, senseLoopPinCfg);

Task_Params_init(&taskParams);
taskParams.stack = securityTaskStack;
taskParams.stackSize = SEC_TASK_STACK_SIZE;
taskParams.priority = 2;
Task_construct(&securityTask, securityThread, &taskParams, NULL);

    BIOS_start(); /* enable interrupts and start SYS/BIOS */
}

Void securityThread(UArg a0, UArg a1)
{

#if defined(POWER_MEAS)
    /* Disable external flash for power measurements */
    Board_shutDownExtFlash();
#endif

    while(1)
    {
        PIN_setOutputValue(senseLoopPinHandle, STROBE, 1);     // GPIO power sense line (just a voltage divider )
        ASM_NOP; ASM_NOP; ASM_NOP; ASM_NOP; ASM_NOP;           // short delay after switching gpio high
        ASM_NOP; ASM_NOP; ASM_NOP; ASM_NOP; ASM_NOP;
        ASM_NOP; ASM_NOP; ASM_NOP; ASM_NOP; ASM_NOP;
        ASM_NOP; ASM_NOP; ASM_NOP; ASM_NOP; ASM_NOP;

        senseloop_mV = get_single_ADC( CC13X0_LAUNCHXL_ADC0 );      // Get the ADC result

        PIN_setOutputValue(senseLoopPinHandle, STROBE, 0);          // Set sense line low
        Task_sleep( 250 *1000 / Clock_tickPeriod );             // sleep
    }
}

uint32_t get_single_ADC( CC13X0_LAUNCHXL_ADCName adc_Ch )
{
    ADC_Handle   adc;
    ADC_Params   params;
    int_fast16_t res;
    uint32_t     adcValue_mV;
    uint16_t     raw_adc;

    ADC_Params_init(&params);
    adc = ADC_open(adc_Ch, &params);

    if (adc == NULL)
    {
        System_printf("Error initializing ADC channel 0\r\n");
        while (1);
    }

    /* Blocking mode conversion */
    res = ADC_convert(adc, &raw_adc);

    if (res == ADC_STATUS_SUCCESS)
    {
        adcValue_mV = ADC_convertRawToMicroVolts(adc, raw_adc) / 1000;
    }
    else
    {
        System_printf("ADC channel 0 convert failed\n\r");
    }

    ADC_close(adc);
    return adcValue_mV;
}

App.cfg contents

/* ================ Idle configuration ================ */
var Idle = xdc.useModule('ti.sysbios.knl.Idle');
/*
 * The Idle module is used to specify a list of functions to be called when no
 * other tasks are running in the system.
 *
 * Functions added here will be run continuously within the idle task.
 *
 * Function signature:
 *     Void func(Void);
 */
//Idle.addFunc("&myIdleFunc");
Idle.addFunc('&Power_idleFunc');  /* Add the Power module's idle function */
Idle.addFunc('&UartPrintf_flush'); /* Add the UART printout function */

Task.enableIdleTask = true;
//Task.enableIdleTask = false;
//Task.allBlockedFunc = Idle.run;