My nap on the commuter bus went well. (Basically: Get on bus, fall asleep, wake up when bus starts stopping at lights in Sac)
It's the city bus that's a wee bit more tricky. It stops every 8.4 seconds, so the "stopping rule" doesn't work when I want a nap. The trip from there takes 35 minutes, so I set my phone for 30 and called it good.
When I woke up in a part of town I didn't recognize, I called it Not Good. Luckily, it just retraces its route and the bus driver wanted to chat on her 15 minute break. From her, I bring you this sage advice after mentioning what economic struggles she had gone through after her husband died:
"When you get married, insure his ass"
You're all quite welcome.