WE successfully crossed at Columbia his morning. We got to the Mexican side just after 8 AM and quickly got our car stamp removed and returned our tourist permits. On the US side, we stopped at the end of the bridge to see how they would handle my unit. Two years ago, I had to let the wife and two dogs walk through while I took the RV and the other dog through the commercial side. It took FOREVER as the line of trucks was so long and each X-ray took about 10 minutes. Last year, we went right through the non-commercial side and it took about 15 minutes. This year they reverted to the first way because they consider having THREE DOGS AS BEING CARGO!!! We got off lucky as there was no one in line and from wife drop off to wife pick-up it was just a half hour. Customs is like a box of chocolates; you never know what you're going to get.
Paul