Limiting Contact During Ticket Scanning

Hello! Would love to pick everyone's brain - our operations and IT team are thinking through our front of house procedures and how we can minimize the amount of human contact that occurs during them to help ensure everyone's safety/peace of mind when we get to a point we can reopen.

Currently, our ushers will take a ticket from a patron, scan it, and hand it back to them. We're currently brainstorm having our ushers instead supervise a scanning "station" - perhaps setting up a scanner in a stand with the scan button always pushed down, creating a structure more like an airport boarding pass scanner, where the patron would hold out their ticket to be scanned themselves. 

From a technical perspective, can you think of potential downfalls with this? At my old house management job, we used to scan ticket stubs rapidly like this - prop up our ancient USB scanner so the button was pressed so we could run through the tickets to be scanned rapidly. However, we haven't done any testing yet with our current devices to see if there would be any timeout or sleep issues, or to test how easy it would be for patrons to correctly position the tickets. Would love to get everyone's thoughts.