2000 with 188k on it. Just had the tranny fluid checked about a month ago, and it looked good. Driving down the interstate today, a/t oil temp light comes on. I have to be in court, so I keep driving about 10 miles. Tranny is shifting fine. When I get there, I cut the truck off and back on. Light still on. Now there is a very loud, very unpleasant sound coming from the engine bay. Sounds mechanical, not a belt. Didn't have time to check the fluid bc of court. Should I just get it towed to the dealer? No good independent shops around here.