Unresponsive screen but everything else works

Title says it all, can see volume increase, radio stations changing channels, can see everything happen on the touchscreen. But because I cant touch my touchscreen (its unresponsive to touch) I cant press 'okay' on the screen to start the usb update.

When I plug the USB in. It initializes the update then pops up with a message saying make sure im parked and in a safe spot bla bla bla press 'okay' to start the update, cant press it on the screen. Anyway around this?

2015 ford explorer sport twin turbo