Chang'an's train station actually had a "VIP passage" due to practical needs. This passage allowed direct access to one's awaiting car, eliminating the need to use the exit commoners utilized.
After all, if Tang Mo, His Majesty The Emperor, took the train back to the Imperial Capital, having to use the public exit would truly be a joke.
Besides Tang Mo himself, who was soon to be Emperor, others using the VIP passage were still subject to checks. Even the princes of Chu Country were allowed only one armed attendant, and the station strictly prohibited dangerous explosives and toxic drugs.
Having handed over all his luggage for detailed inspection by the station staff, the prince from Chu Country finally saw the diplomatic service vehicle from Tang Country that had come to receive him.
He was then moved almost to tears by the warm hospitality of Tang Country: it was his first time seeing such a luxurious car, his first time seeing a car's paint gleaming like a mirror.