I know these things aren't exactly fuel efficient or bought for that purpose but what sort of mileage are you guys getting with the camper on and is your rig gas or diesel?
Yeah, if you’re tailgating semis, wrecking on your own due to speed is the least of your worries. I bet that semi was happy to contribute to your MPG, right? :D
70 in a 80 is much better than 60. The difference in speed is what makes the slow speed more dangerous than going a little faster. Of course, you can always just hit one of the backroads to go 60.