Be careful not to get ripped
Be careful not to get ripped off by this garage. They will act like something is wrong with your QR code and say you have to pay again to leave and then call to try and get a refund. Since there is a long line of event parking behind you trying to leave they probably think you'll just pay up to get out of there. If you put your car in park and call BS on paying again suddenly its a problem with the system and they just need a picture of your QR code so they can put it in later. What nonsense. Do yourself a favor and park at one of the many many garages downtown that are not trying to steal from you.

Reply from Parking.com - 1111 SAN JACINTO ST. GARAGE