I put a letter in the mail box across the street from 7&11 store on High street on 1/13/2020. Did the mail carryer pick it up??

It should have been picked up same day or the next day depending on pickup times.

Yes, the boxes for cleaned out every day excluding Sundays. The times they are too be emptied out is in every blue collection box. If you happen to put the letter in there after that time then it'll be grabbed the next day. We are required to empty every collection box by the time posted on the box. No sooner