Haha, funny you should post this. I just got home from scouting and had the same thing all over me. I bring along 2 sets of clothes when scouting this early in the season.
Just 2 hours ago I looked down and saw the "nest" crawling all over me. I go back to the truck, pull my clothes/boots off and throw those in the
back of the truck. Then I pick off as many as I can and put on my other clothes. Go home and scrub like hell in the shower. The joys of being a sportsman.
And yes, there will be a lot in your vehicle. Have fun checking each other for ticks.