I don't remember exactly but it seems the left front tire runs about 20 degrees higher than the passenger side front. Yes, the exhaust is on the drivers side so that exhaust passes down that side of the tow car and presumable heats that tire.
Bob, Sandi & Marmaduke the Big Pug
SW OREGON 2004 Journey 39K, 330 Cat
If towing: a 2006 Mini Cooper or 1995 Wrangler