As a compromise, take the bus to DHS, which is the park closest to EWWS, and grab a taxi from there. The taxis start lining up at DHS around 11am.
Or walk to MK and take the bus to AoA, and then a taxi from there. Total travel time should be under an hour, and cab fare around $5 (unless the cab runs into heavy traffic at EWWS).
When they are running, the buses from Pop to EWWS run every 30 minutes, and the trip takes about 25 minutes, so you're saving up to 50 minutes by taking a taxi from AoA. The trip from EWWS to Pop takes only 5 minutes and you may be able to time your departure to meet the bus schedule (on the hour and half-hour), so the taxi back is optional.