Montgomery College Using MOTOTRBO on 464.7500?

Montgomery College (Takoma Park/Silver Spring campus) may be using MOTOTRBO on 464.7500. The college previously used this frequency in analog mode, with a tone of [ d047]. But that appears to be gone, and MOTOTRBO is now heard on this frequency. Even though this frequency is not coded for MOTOTRBO on the license, the other frequency on the license (461.9750) is coded for MOTOTRBO and has been confirmed using MOTOTRBO.