I'm tooling along through a foggy, damp 60 degree Boston morning, loving it, thinking "gee, I haven't had a flat in a long time." Sure enough, my rear wheel went slowly down. I pulled over, found the piece of glass that lodged into and sliced the tire (Conti Gatorskin Ultras), replaced the tube, and pumped it up with my hand pump. I'm guessing I got it pumped to 40 psi. Not high performance (Gatorskins are 125 psi max), but enough to get me to work.

There's a filling station about 3 blocks up. I have about 3 miles left to work. The back wheel is a little squishy, but I'm nervous about blowing out the tire. If I flat again, I'll be late for a presentation I'm giving in 45 minutes.

At that point, would you stop at the gas station and top off the tube or ride the semi-inflated tube into work and deal with it later?