I wonder what they're going to do with the old vehicles that are being replaced. During the last replacement cycle, the used vehicle market was flooded with sur

I wonder what they're going to do with the old vehicles that are being replaced. During the last replacement cycle, the used vehicle market was flooded with surplus Jeeps. One of my brother's friends got one for $12 at auction. They were inexpensive first vehicles for teenagers though not all that safe. My understanding is that UPS scraps their vehicles once they've exhausted their usefulness, which is why you don't see used UPS vehicles driving around with the logo painted over. Would USPS do the same?