Accidentally winterized the water heater

While pumping the pink stuff through the plumbing, I realized that we forgot to set the bypass. I know some antifreeze got into the water heater- will it be ok through the winter?
I usually remove the anode to drain completely, will that be enough to remove enough pink stuff, or should I flush it now as well? (& How?)

Our spring routine sends bleach through the whole system followed by a couple rinses. Thanks in advance! ??