For anyone interested. Here is a rough video I put together of how to get from ChaingWhattana immigration to the alternate location over by Impact Challenger in Muang Thong Thani.
This was recorded from my motorbike, so it is a little bumpy, but still easy to follow.
TLDR : Answer Summary
A user shared a video on navigating from ChaingWhattana immigration office to an alternate location at Impact Challenger in Muang Thong Thani. The video, which is a bit bumpy as it was filmed from a motorbike, details the route. In the comments, viewers discuss sharing the video, safety tips for driving in Thailand, and alternative travel options such as taking the Impact Van from BTS Mo Chit or a taxi from the MRT.