Had a quite a few punctured tyres over the years, all were plugged to varying degrees of success.
A couple of times i was riding in a group, and a couple of the more mechanical minded mates took over the repair, I just sat back, waited until they got their hands dirty and completed the repair.
Then there was on a gravel section of the Bonang Highway without any mobile (cell to you guys) coverage. Option was to wait for a passerby, but traffic was infrequent, or plug it myself. With plug in place, I was slowly pumping-up the tyre (small 12v compressor), but a 4 X 4 stopped to help, and pumped up the tyre with his huge onboard compressor.
Next time on the Great Apline Road, no mobile coverage where we stopped, but a short walk (by the pillion) found coverage. A call to the RACV (like AAA), advised of a three hour wait, so I had a go at repairing it myself. Three (or was it four?) rope plugs later, the tyre held enough pressure to continue the ride with regular tyre pressure checks, and return to home - 450km. Replaced tyre at 1st service (1,500km) - that's what really hurt the most.
Last time, on the Taralga Road, mobile coverage okay, three hour wait, repaired it myself, regular tyre pressure checks, replaced tyre - but it was pretty knackered anyway...
Not sure how bad the OP's tyre was, the split in mine on the Great Alpine Road looked pretty bad, but at least an attempted repair was better than a three hour wait, and in this case, adequate to get us home.
My repair kit includes, rubber plugs, rope plugs, a couple of tubes of glue, a couple of hole reamers, 5 or 6 CO
2 cannisters and 12v pump.