1-2£ live hand in London

It is late, around 3am and game is starting to break up. We are six handed, me and five recreational players.
UTG limps and everyone folds to me on the button, I raise to 10£ KJ off, SB says "insta call" and calls, BB folds and UTG limper calls.

Flop is Ks Js Th. Checked to me, I bet 23£, SB thinks for a few seconds and calls, UTG limper folds.

Turn is 5d. SB checks and I bet 53£, SB thinks for a few seconds and calls.

River is 5c and SB insta shoves his remaining 85£ when there is already 180£ in the pot. WTF???

Opinion about all streets is welcome, but what do you do on the river???
SB is a recreational player and a cab driver, who comes to play when his shift is over (don't think it is relevant but...).

Hand is good so far. No way you can fold river for that size with the flush draw missing as well. Logically speaking you can never put him on a 5 here. If dude has slowplayed nuts sucks for you but your play is definitely +EV.

snap call indeed. jj+ and aq wouldve at least thought about 3betting, so kost lokely he has got an airball as little else gets there except a5ss or so

i say "snap call" and call him
then i say "hit n run " collect my cash and go to bed

Either a5ss or bluff. Dunno. Sometimes when I see a river like I snap call because most often than not it's busted flush or maybe J or T with whatever you think he has (T9ss comes to mind)

gotta call yo

Call obv but rofl did he really have a 5 (or aa?)

Thanks for your input guys. Glad that everyone agrees about a call on the river.
Villain had TT. Later he explained that he put me on AQ (lol) and that is why the hand was played this way. He had to hit full house to win and when he did he insta shoved. Well played I guess...
After some analysis I think it all comes down to if he ever has a bluffing range here and considering passiveness of the game and the way he played bottom set on the wettest flop in history of poker, I came to conclusion that it is never a bluff. You live and you learn, plus you have to admire those crazy London cab drivers and their weird lines.

lol well apparently this guy was playing with his gas/food money