If you came out the JS and went round the whole stadium, including passing the away end, you must've turned right when you came out. Turning left is the way to go.
To compare with Hampden, we usually arrive at the turnstiles about 10 mins before kick off and are in our seats for the anthems/kick off/1st minute. Last night we again arrived at the turnstiles with 10 minutes to spare and ended up missing the first 15 minutes.
Signage within the stadium didn't make sense either. I followed the signs to my seat in 442 and ended up in 443.
I eventually moved to the correct seat but curiosity got the better of me and I checked the signage again at half time to see if I had made an arse of it.
Nope.
I didn't even have the excuse of being drunk.