I have a simple solution to the current dilemma. Rob claims he fears meeting up with an unknown internet poster and demands ID in advance so he can do a background check. Max fears providing identification to Rob in advance because....well no one would want to send a copy of their driver's license to someone they don't really trust.
So instead of an advance driver's license, how about Rob just hire a local private security guard for 2 hours. They meet Max at Denny's and proceed to the Newell location. If it all checks out then Max pays for the security guard, shows his DL and Rob can gloat. If it's all bogus then Max is only out the cost of the trip, but he gets to gloat. It's all so simple.
Rob has real protection...not just an ID. Max doesn't have to give up his identity in advance. Everybody who is truthful wins.