That BMW is rated to tow 2400 pounds? Damn that is impressive. I've yet to see a sedan that can tow over 1500. I tow with a light trailer/bike with my '18 Accord Sport but it is not rated to tow at all. My '06 Accord was rated for 1000 pounds. My 5'x7' open trailer and bike combined are 700 pounds.
And you did this at 80mph, I'm impressed both by the feat and ticket avoidance!