In July one of my rear tires got a nail on it just as I got on the highway and luckily for me it slowly deflated the tire so I could safely pull over and call Hondacare! I got the tire replaced and they balanced the wheels and did an alignment and checked the car over. Ever since then at speeds over 60 mph the car feels very bumpy. So much that I now avoid highways due to this. Any ideas on what could be causing this? PSI is fine and the dealer is telling me everything looks good.