In Chelmsford, MA there was a rest area on Rt 3 that was a meet up place for homo men back in the 1980s.
A buddy of mine found out this fact when he stopped to actually use the bathroom on a road trip. He was literally approached by two different men going into and out of the bathroom wondering IF he was looking for some action?
We teased him about it for years.
There is/was a park in NE Indy that is right off the Interstate. It was listed on many Homo websites as a good place to hookup. Easy, quick on/off the Interstate and a lot of wooded trails to walk up to find a convenient tree to lean against to do your thing before heading on down the road. I ran into two queers while helping my niece get leaves for a leaf collection. Had to take a hard U-turn. Not sure what she saw.