It's Easter/spring break so demand is higher, which would make costs higher with surge pricing more likely. If you're going during a less crowded time of year or need a car at a less desirable time, you'll still be fine. At Animal Kingdom, Epcot, and Studios, the pickup-drop-off couldn't be much closer to temperature check./the entrance.
The one potential issue is that the parking lots don't open until 30 to 45 minutes before the park, so you could be awkwardly waiting in line. If that happens, just tell them you tip well. The exception would be the Transportation and Ticket Center where they should be able to drop you off whenever since you'll bypass the parking plaza. It would still be smart to try to get dropped off at the Contemporary or Grand Floridian.