Michigan Ram

Exciting ride home tonight. Passed a slower moving car at full throttle and it stuck there! Luckily road ahead was straight and clear, but at about 85mph it wasn't much fun anymore. Tried tapping gas pedal, brakes - nothing. Put it in neutral where it stayed at 3500 rpm for about 8-10 seconds and then finally started dropping down. I kept rpm low after that (~1300) and it seemed to be back under control. Brought it home and tried high throttle (not full though) in park and it was very sticky - didn't want to drop down for a couple of seconds, repeatedly. Checked pedal and it wasn't sticking down, floor mat wasn't binding, etc. Haven't checked the TPS yet to see if there's anything suspicious going on around it. Truck only has 36K on it, can't believe the TPS is going bad already. Any ideas?