I don't mind you rejoining the plot nor do I mind providing a summary for you. I've kept your character in the action, but not forced to act.
I would prefer you read the rest of the plot anyway, for your own sake as well as ours, but I will summarize the actions following your departure here anyway.
After meeting with Alex in the diner, I auto'd everyone out to a meeting with bigwigs on the roof of a sky scraper. Alex left Dimitri out in the truck because one of the bigs was a black syndicate power player, and Alex didn't want any trouble. After leaving the meeting, they team made their way to a rendezvous with two other truckloads of resistance members and were ambushed before they could ascertain the location of the submarine Alex planned to use as a base of operations. Chase ensued and the three trucks made their way south. Soon, it became apparent that the NMX had prepared for this as they encountered roadblocks and various pursuers. Currently, the convoy is approaching the final roadblock, which is equipped with a tank. Dimitri is seated in the passenger seat of the tuck at the front of the line.