This would be a great neighborhood convenience if it were not for the fact that their opening hours are seemingly random. One can go to post a package anywhere between 12 noon and 4 pm and there is a high likelihood that it will be closed for "lunch".
I hope to think that my tax dollars are not paying for these workers to run this post office like this. If so, it's no wonder the USPS is in trouble. Can you imagine UPS or FedEx not being open for hours at a time in the middle of the day?
Go to the one at the gas station/convenience store just a little ways away on Rampart.