Velodyne rawdata.cc does not appear to read hardware time stamp

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From the HDL-32E User's Manual & Programming Guide, pg 9:

Packet Format and Status Byte for GPS Time Stamping
The 6 extra bytes at the end of the HDL-32E data packet are used to report GPS timing. For every packet, the last 6 bytes are formatted as follows:
     4 bytes: 32 bit unsigned integer time stamp. This value represents microseconds from the top of the hour to the first laser firing in the packet.
     2 bytes: blank

Unless I am failing to follow the code, rawdata.cc never touches the time stamp bytes in the data packet.

Question: Are we to assume that the time stamp reported by pcl_ros/bag_to_pcd is the time the UDP packet was received in software as opposed to the hardware-provided time stamp?