"Ah yes, I suppose we can wait here and ambush the next guard that comes in, and kindly ask him to direct us to the bikes. I'll cover the escape. but while we're waiting here let me patch you up."
If he doesn't have anything to say, I'll work on treating him for shock, while listening for anyone approaching (if he or I hear anything, I'll stop)
First Aid 14 +3 = 17 (I forgot to add the Tech Level bonus for basic equipment at TL9)
Rolled 3d6 : 3, 1, 6, total 10
If success, for each 10HP he normally has, he will heal 1d damage.