I looked at a map and determined that the easiest way to drive all the way up Stevens Creek Canyon Road as far as I could and walk the rest of the way to the cache. According to my map, it would be less than a 1 mile walk with little elevation change.
My map was wrong. There was a gate 1.8 miles from the cache. There were no parking signs everywhere, but I parked somewhere where it didn't explicitly say no parking right here.
The walk up the canyon was nice. There were lots of people on bikes barrelling down the narrow trails. After a while I got paranoid that I wouldn't hear them and they'd run me over.
About a mile in I came upon a stream crossing and there was no way I was going to be able to jump it. So I took off my socks and sneakers, crossed it , and it put them back on.
The rest of the hike was nice and only gently uphill. When I got close to the coordinates I started looking. I didn't find anything at first, so I went all the way down to the creek crossing. That seemed too far away, so I went back and found it just inches from the first place I looked! TNLNSL.
I avoided the bikes and crossed the stream on the way back. My car was still in place, and no ticket. Hooray!