I called it again and it went immediately to voice mail from then on out.
A while later, I swapped the clothes from the washer to the dryer and found my dead phone in there. I have it sitting around airing out, but given that calling it dropped it immediately to voice mail, I suspect it is totally toasted. Interesting that it survived the wash, but not the call afterwards.
Luckily, I have another phone which I pressed into service. Unluckily, I lost a bunch of phone numbers in the process =( Comments to this are screened, so you can give me your number again.