Transmission Issues with 95 prelude 5 speed.?

So I was driving home on the highway the other day and suddenly my car pops out of gear and my rpms shoot up. I let off the gas, put the clutch in, and put it back in gear without problem. Now this happens about four times before finally the car refuses to be put in ANY gear and I had to get towed. Basically I can be sitting there in my driveway, put it in first, completely let off the clutch, and the car will not stall. I did not notice my clutch slipping. No burning smells or higher than usual rpm levels. Car was driving completely fine and normal up to that point where it was popping out of gear. Also the car only has about 70k miles. Any idea what this may be? I'm hoping its only the master or slave cylinder and not the clutch itself being as I know this generation of prelude has a master slave cylinder recall out on it, I'm just not sure how to personally check if its been replaced already. I'm having it towed to the shop today and preparing for the worst.